diff --git a/pyproject.toml b/pyproject.toml
index 13618fa57700eabb6cd9daa41f6296c8571fe828..11c85b858868c9e8f0f2d27e67b607a4b2b7bebb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -465,6 +465,9 @@ rimoner3-disc = "mednet.libs.segmentation.config.data.rimoner3.disc_exp1"
 rimoner3-cup-2nd = "mednet.libs.segmentation.config.data.rimoner3.cup_exp2"
 rimoner3-disc-2nd = "mednet.libs.segmentation.config.data.rimoner3.disc_exp2"
 
+# shenzhen - cxr
+shenzhen = "mednet.libs.segmentation.config.data.shenzhen.default"
+
 # stare dataset - retinography
 stare = "mednet.libs.segmentation.config.data.stare.ah"
 stare-2nd = "mednet.libs.segmentation.config.data.stare.vk"
diff --git a/src/mednet/libs/segmentation/config/data/shenzhen/__init__.py b/src/mednet/libs/segmentation/config/data/shenzhen/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/src/mednet/libs/segmentation/config/data/shenzhen/datamodule.py b/src/mednet/libs/segmentation/config/data/shenzhen/datamodule.py
new file mode 100644
index 0000000000000000000000000000000000000000..fc52054fb577068554b3c259031d33673a3def61
--- /dev/null
+++ b/src/mednet/libs/segmentation/config/data/shenzhen/datamodule.py
@@ -0,0 +1,97 @@
+# SPDX-FileCopyrightText: Copyright © 2024 Idiap Research Institute <contact@idiap.ch>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+"""Shenzhen No.3 People’s Hospital dataset for Lung Segmentation."""
+
+import os
+import pathlib
+
+import PIL.Image
+import torch
+from mednet.libs.common.data.datamodule import CachingDataModule
+from mednet.libs.common.data.split import make_split
+from mednet.libs.common.data.typing import Sample
+from mednet.libs.segmentation.data.typing import (
+    SegmentationRawDataLoader as _SegmentationRawDataLoader,
+)
+from torchvision import tv_tensors
+from torchvision.transforms.functional import to_tensor
+
+from ....utils.rc import load_rc
+
+CONFIGURATION_KEY_DATADIR = "datadir." + (__name__.rsplit(".", 2)[-2])
+"""Key to search for in the configuration file for the root directory of this
+database."""
+
+
+class SegmentationRawDataLoader(_SegmentationRawDataLoader):
+    """A specialized raw-data-loader for the shenzhen dataset."""
+
+    datadir: pathlib.Path
+    """This variable contains the base directory where the database raw data is
+    stored."""
+
+    def __init__(self):
+        self.datadir = pathlib.Path(
+            load_rc().get(CONFIGURATION_KEY_DATADIR, os.path.realpath(os.curdir))
+        )
+
+    def sample(self, sample: tuple[str, str, str]) -> Sample:
+        """Load a single image sample from the disk.
+
+        Parameters
+        ----------
+        sample
+            A tuple containing path suffixes to the sample image, target, and mask
+            to be loaded, within the dataset root folder.
+
+        Returns
+        -------
+            The sample representation.
+        """
+
+        image = to_tensor(PIL.Image.open(self.datadir / sample[0]).convert(mode="RGB"))
+
+        target = to_tensor(
+            PIL.Image.open(self.datadir / sample[1]).convert(mode="1", dither=None)
+        )
+
+        tensor = tv_tensors.Image(image)
+        target = tv_tensors.Image(target)
+        mask = tv_tensors.Mask(torch.ones_like(target))
+
+        return tensor, dict(target=target, mask=mask, name=sample[0])  # type: ignore[arg-type]
+
+
+class DataModule(CachingDataModule):
+    """Shenzhen No.3 People’s Hospital dataset for Lung Segmentation.
+
+    The database includes 336 cases with manifestation of tuberculosis, and 326
+    normal cases.  It contains a total  of 662 images. Image size varies for each
+    X-ray. It is approximately 3K x 3K. One set of ground-truth lung annotations is
+    available for 566 of the 662 images.
+
+    * Reference: [SHENZHEN-2014]_
+    * Original resolution (height x width): Approximately 3K x 3K (varies)
+    * Configuration resolution: 512 x 512 (after rescaling)
+    * Split reference: [GAAL-2020]_
+    * Protocol ``default``:
+
+    * Training samples: 396 (including labels)
+    * Validation samples: 56 (including labels)
+    * Test samples: 114 (including labels)
+
+    Parameters
+    ----------
+    split_filename
+        Name of the .json file containing the split to load.
+    """
+
+    def __init__(self, split_filename: str):
+        assert __package__ is not None
+        super().__init__(
+            database_split=make_split(__package__, split_filename),
+            raw_data_loader=SegmentationRawDataLoader(),
+            database_name=__package__.rsplit(".", 1)[1],
+            split_name=pathlib.Path(split_filename).stem,
+        )
diff --git a/src/mednet/libs/segmentation/config/data/shenzhen/default.json b/src/mednet/libs/segmentation/config/data/shenzhen/default.json
new file mode 100644
index 0000000000000000000000000000000000000000..2c1f75ed0eb09fec292e2440eb3386a527757487
--- /dev/null
+++ b/src/mednet/libs/segmentation/config/data/shenzhen/default.json
@@ -0,0 +1,2272 @@
+{
+ "train": [
+  [
+   "CXR_png/CHNCXR_0557_1.png",
+   "mask/CHNCXR_0557_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0612_1.png",
+   "mask/CHNCXR_0612_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0436_1.png",
+   "mask/CHNCXR_0436_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0643_1.png",
+   "mask/CHNCXR_0643_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0414_1.png",
+   "mask/CHNCXR_0414_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0528_1.png",
+   "mask/CHNCXR_0528_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0233_0.png",
+   "mask/CHNCXR_0233_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0239_0.png",
+   "mask/CHNCXR_0239_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0583_1.png",
+   "mask/CHNCXR_0583_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0066_0.png",
+   "mask/CHNCXR_0066_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0518_1.png",
+   "mask/CHNCXR_0518_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0465_1.png",
+   "mask/CHNCXR_0465_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0587_1.png",
+   "mask/CHNCXR_0587_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0584_1.png",
+   "mask/CHNCXR_0584_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0586_1.png",
+   "mask/CHNCXR_0586_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0237_0.png",
+   "mask/CHNCXR_0237_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0007_0.png",
+   "mask/CHNCXR_0007_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0063_0.png",
+   "mask/CHNCXR_0063_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0013_0.png",
+   "mask/CHNCXR_0013_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0086_0.png",
+   "mask/CHNCXR_0086_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0309_0.png",
+   "mask/CHNCXR_0309_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0423_1.png",
+   "mask/CHNCXR_0423_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0249_0.png",
+   "mask/CHNCXR_0249_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0320_0.png",
+   "mask/CHNCXR_0320_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0534_1.png",
+   "mask/CHNCXR_0534_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0608_1.png",
+   "mask/CHNCXR_0608_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0142_0.png",
+   "mask/CHNCXR_0142_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0258_0.png",
+   "mask/CHNCXR_0258_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0529_1.png",
+   "mask/CHNCXR_0529_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0409_1.png",
+   "mask/CHNCXR_0409_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0410_1.png",
+   "mask/CHNCXR_0410_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0061_0.png",
+   "mask/CHNCXR_0061_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0339_1.png",
+   "mask/CHNCXR_0339_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0599_1.png",
+   "mask/CHNCXR_0599_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0547_1.png",
+   "mask/CHNCXR_0547_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0445_1.png",
+   "mask/CHNCXR_0445_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0520_1.png",
+   "mask/CHNCXR_0520_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0079_0.png",
+   "mask/CHNCXR_0079_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0644_1.png",
+   "mask/CHNCXR_0644_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0637_1.png",
+   "mask/CHNCXR_0637_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0470_1.png",
+   "mask/CHNCXR_0470_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0298_0.png",
+   "mask/CHNCXR_0298_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0590_1.png",
+   "mask/CHNCXR_0590_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0147_0.png",
+   "mask/CHNCXR_0147_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0269_0.png",
+   "mask/CHNCXR_0269_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0623_1.png",
+   "mask/CHNCXR_0623_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0576_1.png",
+   "mask/CHNCXR_0576_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0129_0.png",
+   "mask/CHNCXR_0129_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0261_0.png",
+   "mask/CHNCXR_0261_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0512_1.png",
+   "mask/CHNCXR_0512_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0397_1.png",
+   "mask/CHNCXR_0397_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0661_1.png",
+   "mask/CHNCXR_0661_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0394_1.png",
+   "mask/CHNCXR_0394_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0290_0.png",
+   "mask/CHNCXR_0290_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0538_1.png",
+   "mask/CHNCXR_0538_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0122_0.png",
+   "mask/CHNCXR_0122_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0379_1.png",
+   "mask/CHNCXR_0379_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0236_0.png",
+   "mask/CHNCXR_0236_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0238_0.png",
+   "mask/CHNCXR_0238_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0173_0.png",
+   "mask/CHNCXR_0173_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0273_0.png",
+   "mask/CHNCXR_0273_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0509_1.png",
+   "mask/CHNCXR_0509_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0274_0.png",
+   "mask/CHNCXR_0274_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0335_1.png",
+   "mask/CHNCXR_0335_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0472_1.png",
+   "mask/CHNCXR_0472_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0076_0.png",
+   "mask/CHNCXR_0076_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0133_0.png",
+   "mask/CHNCXR_0133_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0618_1.png",
+   "mask/CHNCXR_0618_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0640_1.png",
+   "mask/CHNCXR_0640_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0596_1.png",
+   "mask/CHNCXR_0596_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0419_1.png",
+   "mask/CHNCXR_0419_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0453_1.png",
+   "mask/CHNCXR_0453_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0284_0.png",
+   "mask/CHNCXR_0284_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0144_0.png",
+   "mask/CHNCXR_0144_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0130_0.png",
+   "mask/CHNCXR_0130_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0315_0.png",
+   "mask/CHNCXR_0315_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0115_0.png",
+   "mask/CHNCXR_0115_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0469_1.png",
+   "mask/CHNCXR_0469_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0523_1.png",
+   "mask/CHNCXR_0523_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0089_0.png",
+   "mask/CHNCXR_0089_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0042_0.png",
+   "mask/CHNCXR_0042_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0337_1.png",
+   "mask/CHNCXR_0337_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0322_0.png",
+   "mask/CHNCXR_0322_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0252_0.png",
+   "mask/CHNCXR_0252_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0140_0.png",
+   "mask/CHNCXR_0140_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0480_1.png",
+   "mask/CHNCXR_0480_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0015_0.png",
+   "mask/CHNCXR_0015_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0060_0.png",
+   "mask/CHNCXR_0060_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0649_1.png",
+   "mask/CHNCXR_0649_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0117_0.png",
+   "mask/CHNCXR_0117_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0161_0.png",
+   "mask/CHNCXR_0161_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0456_1.png",
+   "mask/CHNCXR_0456_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0295_0.png",
+   "mask/CHNCXR_0295_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0503_1.png",
+   "mask/CHNCXR_0503_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0365_1.png",
+   "mask/CHNCXR_0365_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0020_0.png",
+   "mask/CHNCXR_0020_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0540_1.png",
+   "mask/CHNCXR_0540_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0558_1.png",
+   "mask/CHNCXR_0558_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0105_0.png",
+   "mask/CHNCXR_0105_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0406_1.png",
+   "mask/CHNCXR_0406_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0527_1.png",
+   "mask/CHNCXR_0527_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0240_0.png",
+   "mask/CHNCXR_0240_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0450_1.png",
+   "mask/CHNCXR_0450_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0031_0.png",
+   "mask/CHNCXR_0031_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0385_1.png",
+   "mask/CHNCXR_0385_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0427_1.png",
+   "mask/CHNCXR_0427_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0367_1.png",
+   "mask/CHNCXR_0367_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0302_0.png",
+   "mask/CHNCXR_0302_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0221_0.png",
+   "mask/CHNCXR_0221_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0102_0.png",
+   "mask/CHNCXR_0102_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0257_0.png",
+   "mask/CHNCXR_0257_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0143_0.png",
+   "mask/CHNCXR_0143_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0464_1.png",
+   "mask/CHNCXR_0464_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0415_1.png",
+   "mask/CHNCXR_0415_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0055_0.png",
+   "mask/CHNCXR_0055_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0162_0.png",
+   "mask/CHNCXR_0162_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0455_1.png",
+   "mask/CHNCXR_0455_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0280_0.png",
+   "mask/CHNCXR_0280_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0416_1.png",
+   "mask/CHNCXR_0416_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0113_0.png",
+   "mask/CHNCXR_0113_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0264_0.png",
+   "mask/CHNCXR_0264_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0029_0.png",
+   "mask/CHNCXR_0029_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0658_1.png",
+   "mask/CHNCXR_0658_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0402_1.png",
+   "mask/CHNCXR_0402_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0400_1.png",
+   "mask/CHNCXR_0400_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0411_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0646_1.png",
+   "mask/CHNCXR_0646_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0078_0.png",
+   "mask/CHNCXR_0078_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0542_1.png",
+   "mask/CHNCXR_0542_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0613_1.png",
+   "mask/CHNCXR_0613_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0035_0.png",
+   "mask/CHNCXR_0035_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0107_0.png",
+   "mask/CHNCXR_0107_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0228_0.png",
+   "mask/CHNCXR_0228_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0407_1.png",
+   "mask/CHNCXR_0407_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0271_0.png",
+   "mask/CHNCXR_0271_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0556_1.png",
+   "mask/CHNCXR_0556_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0317_0.png",
+   "mask/CHNCXR_0317_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0110_0.png",
+   "mask/CHNCXR_0110_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0334_1.png",
+   "mask/CHNCXR_0334_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0555_1.png",
+   "mask/CHNCXR_0555_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0021_0.png",
+   "mask/CHNCXR_0021_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0014_0.png",
+   "mask/CHNCXR_0014_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0569_1.png",
+   "mask/CHNCXR_0569_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0607_1.png",
+   "mask/CHNCXR_0607_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0421_1.png",
+   "mask/CHNCXR_0421_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0049_0.png",
+   "mask/CHNCXR_0049_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0159_0.png",
+   "mask/CHNCXR_0159_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0570_1.png",
+   "mask/CHNCXR_0570_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0138_0.png",
+   "mask/CHNCXR_0138_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0057_0.png",
+   "mask/CHNCXR_0057_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0059_0.png",
+   "mask/CHNCXR_0059_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0103_0.png",
+   "mask/CHNCXR_0103_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0251_0.png",
+   "mask/CHNCXR_0251_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0275_0.png",
+   "mask/CHNCXR_0275_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0627_1.png",
+   "mask/CHNCXR_0627_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0177_0.png",
+   "mask/CHNCXR_0177_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0405_1.png",
+   "mask/CHNCXR_0405_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0441_1.png",
+   "mask/CHNCXR_0441_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0629_1.png",
+   "mask/CHNCXR_0629_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0045_0.png",
+   "mask/CHNCXR_0045_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0383_1.png",
+   "mask/CHNCXR_0383_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0010_0.png",
+   "mask/CHNCXR_0010_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0461_1.png",
+   "mask/CHNCXR_0461_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0058_0.png",
+   "mask/CHNCXR_0058_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0575_1.png",
+   "mask/CHNCXR_0575_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0622_1.png",
+   "mask/CHNCXR_0622_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0088_0.png",
+   "mask/CHNCXR_0088_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0328_1.png",
+   "mask/CHNCXR_0328_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0631_1.png",
+   "mask/CHNCXR_0631_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0250_0.png",
+   "mask/CHNCXR_0250_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0578_1.png",
+   "mask/CHNCXR_0578_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0262_0.png",
+   "mask/CHNCXR_0262_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0539_1.png",
+   "mask/CHNCXR_0539_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0653_1.png",
+   "mask/CHNCXR_0653_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0090_0.png",
+   "mask/CHNCXR_0090_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0463_1.png",
+   "mask/CHNCXR_0463_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0478_1.png",
+   "mask/CHNCXR_0478_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0027_0.png",
+   "mask/CHNCXR_0027_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0121_0.png",
+   "mask/CHNCXR_0121_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0017_0.png",
+   "mask/CHNCXR_0017_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0332_1.png",
+   "mask/CHNCXR_0332_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0517_1.png",
+   "mask/CHNCXR_0517_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0403_1.png",
+   "mask/CHNCXR_0403_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0152_0.png",
+   "mask/CHNCXR_0152_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0081_0.png",
+   "mask/CHNCXR_0081_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0304_0.png",
+   "mask/CHNCXR_0304_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0146_0.png",
+   "mask/CHNCXR_0146_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0657_1.png",
+   "mask/CHNCXR_0657_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0324_0.png",
+   "mask/CHNCXR_0324_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0259_0.png",
+   "mask/CHNCXR_0259_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0080_0.png",
+   "mask/CHNCXR_0080_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0008_0.png",
+   "mask/CHNCXR_0008_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0650_1.png",
+   "mask/CHNCXR_0650_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0573_1.png",
+   "mask/CHNCXR_0573_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0132_0.png",
+   "mask/CHNCXR_0132_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0501_1.png",
+   "mask/CHNCXR_0501_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0581_1.png",
+   "mask/CHNCXR_0581_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0549_1.png",
+   "mask/CHNCXR_0549_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0283_0.png",
+   "mask/CHNCXR_0283_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0537_1.png",
+   "mask/CHNCXR_0537_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0030_0.png",
+   "mask/CHNCXR_0030_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0175_0.png",
+   "mask/CHNCXR_0175_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0231_0.png",
+   "mask/CHNCXR_0231_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0286_0.png",
+   "mask/CHNCXR_0286_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0247_0.png",
+   "mask/CHNCXR_0247_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0634_1.png",
+   "mask/CHNCXR_0634_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0167_0.png",
+   "mask/CHNCXR_0167_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0150_0.png",
+   "mask/CHNCXR_0150_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0087_0.png",
+   "mask/CHNCXR_0087_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0299_0.png",
+   "mask/CHNCXR_0299_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0235_0.png",
+   "mask/CHNCXR_0235_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0072_0.png",
+   "mask/CHNCXR_0072_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0554_1.png",
+   "mask/CHNCXR_0554_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0510_1.png",
+   "mask/CHNCXR_0510_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0141_0.png",
+   "mask/CHNCXR_0141_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0511_1.png",
+   "mask/CHNCXR_0511_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0585_1.png",
+   "mask/CHNCXR_0585_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0245_0.png",
+   "mask/CHNCXR_0245_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0362_1.png",
+   "mask/CHNCXR_0362_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0568_1.png",
+   "mask/CHNCXR_0568_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0120_0.png",
+   "mask/CHNCXR_0120_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0119_0.png",
+   "mask/CHNCXR_0119_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0369_1.png",
+   "mask/CHNCXR_0369_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0544_1.png",
+   "mask/CHNCXR_0544_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0004_0.png",
+   "mask/CHNCXR_0004_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0395_1.png",
+   "mask/CHNCXR_0395_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0094_0.png",
+   "mask/CHNCXR_0094_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0604_1.png",
+   "mask/CHNCXR_0604_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0270_0.png",
+   "mask/CHNCXR_0270_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0084_0.png",
+   "mask/CHNCXR_0084_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0158_0.png",
+   "mask/CHNCXR_0158_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0005_0.png",
+   "mask/CHNCXR_0005_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0068_0.png",
+   "mask/CHNCXR_0068_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0466_1.png",
+   "mask/CHNCXR_0466_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0645_1.png",
+   "mask/CHNCXR_0645_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0263_0.png",
+   "mask/CHNCXR_0263_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0070_0.png",
+   "mask/CHNCXR_0070_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0307_0.png",
+   "mask/CHNCXR_0307_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0164_0.png",
+   "mask/CHNCXR_0164_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0602_1.png",
+   "mask/CHNCXR_0602_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0116_0.png",
+   "mask/CHNCXR_0116_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0224_0.png",
+   "mask/CHNCXR_0224_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0437_1.png",
+   "mask/CHNCXR_0437_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0626_1.png",
+   "mask/CHNCXR_0626_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0229_0.png",
+   "mask/CHNCXR_0229_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0435_1.png",
+   "mask/CHNCXR_0435_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0525_1.png",
+   "mask/CHNCXR_0525_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0476_1.png",
+   "mask/CHNCXR_0476_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0361_1.png",
+   "mask/CHNCXR_0361_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0303_0.png",
+   "mask/CHNCXR_0303_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0255_0.png",
+   "mask/CHNCXR_0255_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0012_0.png",
+   "mask/CHNCXR_0012_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0651_1.png",
+   "mask/CHNCXR_0651_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0109_0.png",
+   "mask/CHNCXR_0109_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0553_1.png",
+   "mask/CHNCXR_0553_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0408_1.png",
+   "mask/CHNCXR_0408_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0595_1.png",
+   "mask/CHNCXR_0595_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0600_1.png",
+   "mask/CHNCXR_0600_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0506_1.png",
+   "mask/CHNCXR_0506_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0230_0.png",
+   "mask/CHNCXR_0230_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0443_1.png",
+   "mask/CHNCXR_0443_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0169_0.png",
+   "mask/CHNCXR_0169_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0420_1.png",
+   "mask/CHNCXR_0420_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0454_1.png",
+   "mask/CHNCXR_0454_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0306_0.png",
+   "mask/CHNCXR_0306_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0522_1.png",
+   "mask/CHNCXR_0522_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0462_1.png",
+   "mask/CHNCXR_0462_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0311_0.png",
+   "mask/CHNCXR_0311_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0426_1.png",
+   "mask/CHNCXR_0426_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0434_1.png",
+   "mask/CHNCXR_0434_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0620_1.png",
+   "mask/CHNCXR_0620_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0536_1.png",
+   "mask/CHNCXR_0536_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0428_1.png",
+   "mask/CHNCXR_0428_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0532_1.png",
+   "mask/CHNCXR_0532_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0126_0.png",
+   "mask/CHNCXR_0126_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0316_0.png",
+   "mask/CHNCXR_0316_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0069_0.png",
+   "mask/CHNCXR_0069_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0288_0.png",
+   "mask/CHNCXR_0288_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0282_0.png",
+   "mask/CHNCXR_0282_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0100_0.png",
+   "mask/CHNCXR_0100_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0389_1.png",
+   "mask/CHNCXR_0389_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0291_0.png",
+   "mask/CHNCXR_0291_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0451_1.png",
+   "mask/CHNCXR_0451_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0333_1.png",
+   "mask/CHNCXR_0333_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0179_0.png",
+   "mask/CHNCXR_0179_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0603_1.png",
+   "mask/CHNCXR_0603_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0366_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0504_1.png",
+   "mask/CHNCXR_0504_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0145_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0392_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0180_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0447_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0073_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0433_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0248_0.png",
+   "mask/CHNCXR_0248_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0044_0.png",
+   "mask/CHNCXR_0044_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0157_0.png",
+   "mask/CHNCXR_0157_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0513_1.png",
+   "mask/CHNCXR_0513_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0016_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0606_1.png",
+   "mask/CHNCXR_0606_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0108_0.png",
+   "mask/CHNCXR_0108_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0548_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0580_1.png",
+   "mask/CHNCXR_0580_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0363_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0516_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0092_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0364_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0124_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0163_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0166_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0610_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0053_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0508_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0519_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0567_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0479_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0024_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0054_0.png",
+   "mask/CHNCXR_0054_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0370_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0373_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0624_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0096_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0256_0.png",
+   "mask/CHNCXR_0256_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0396_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0244_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0155_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0001_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0136_0.png",
+   "mask/CHNCXR_0136_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0267_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0639_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0633_1.png",
+   "mask/CHNCXR_0633_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0591_1.png",
+   "mask/CHNCXR_0591_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0156_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0597_1_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0632_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0375_1.png",
+   "mask/CHNCXR_0375_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0227_0.png",
+   "mask/CHNCXR_0227_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0431_1.png",
+   "mask/CHNCXR_0431_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0148_0.png",
+   "mask/CHNCXR_0148_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0127_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0300_0.png",
+   "mask/CHNCXR_0300_0_mask.png"
+  ],
+  [
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+   "mask/CHNCXR_0566_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0621_1.png",
+   "mask/CHNCXR_0621_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0507_1.png",
+   "mask/CHNCXR_0507_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0642_1.png",
+   "mask/CHNCXR_0642_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0313_0.png",
+   "mask/CHNCXR_0313_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0246_0.png",
+   "mask/CHNCXR_0246_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0630_1.png",
+   "mask/CHNCXR_0630_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0077_0.png",
+   "mask/CHNCXR_0077_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0176_0.png",
+   "mask/CHNCXR_0176_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0222_0.png",
+   "mask/CHNCXR_0222_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0101_0.png",
+   "mask/CHNCXR_0101_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0655_1.png",
+   "mask/CHNCXR_0655_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0425_1.png",
+   "mask/CHNCXR_0425_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0172_0.png",
+   "mask/CHNCXR_0172_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0388_1.png",
+   "mask/CHNCXR_0388_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0422_1.png",
+   "mask/CHNCXR_0422_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0293_0.png",
+   "mask/CHNCXR_0293_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0323_0.png",
+   "mask/CHNCXR_0323_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0106_0.png",
+   "mask/CHNCXR_0106_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0628_1.png",
+   "mask/CHNCXR_0628_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0656_1.png",
+   "mask/CHNCXR_0656_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0085_0.png",
+   "mask/CHNCXR_0085_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0399_1.png",
+   "mask/CHNCXR_0399_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0376_1.png",
+   "mask/CHNCXR_0376_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0593_1.png",
+   "mask/CHNCXR_0593_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0412_1.png",
+   "mask/CHNCXR_0412_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0515_1.png",
+   "mask/CHNCXR_0515_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0041_0.png",
+   "mask/CHNCXR_0041_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0223_0.png",
+   "mask/CHNCXR_0223_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0308_0.png",
+   "mask/CHNCXR_0308_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0265_0.png",
+   "mask/CHNCXR_0265_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0131_0.png",
+   "mask/CHNCXR_0131_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0125_0.png",
+   "mask/CHNCXR_0125_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0552_1.png",
+   "mask/CHNCXR_0552_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0160_0.png",
+   "mask/CHNCXR_0160_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0083_0.png",
+   "mask/CHNCXR_0083_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0429_1.png",
+   "mask/CHNCXR_0429_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0440_1.png",
+   "mask/CHNCXR_0440_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0401_1.png",
+   "mask/CHNCXR_0401_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0625_1.png",
+   "mask/CHNCXR_0625_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0253_0.png",
+   "mask/CHNCXR_0253_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0023_0.png",
+   "mask/CHNCXR_0023_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0418_1.png",
+   "mask/CHNCXR_0418_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0543_1.png",
+   "mask/CHNCXR_0543_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0588_1.png",
+   "mask/CHNCXR_0588_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0312_0.png",
+   "mask/CHNCXR_0312_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0381_1.png",
+   "mask/CHNCXR_0381_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0439_1.png",
+   "mask/CHNCXR_0439_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0287_0.png",
+   "mask/CHNCXR_0287_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0598_1.png",
+   "mask/CHNCXR_0598_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0112_0.png",
+   "mask/CHNCXR_0112_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0535_1.png",
+   "mask/CHNCXR_0535_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0093_0.png",
+   "mask/CHNCXR_0093_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0095_0.png",
+   "mask/CHNCXR_0095_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0638_1.png",
+   "mask/CHNCXR_0638_1_mask.png"
+  ]
+ ],
+ "validation": [
+  [
+   "CXR_png/CHNCXR_0442_1.png",
+   "mask/CHNCXR_0442_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0371_1.png",
+   "mask/CHNCXR_0371_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0449_1.png",
+   "mask/CHNCXR_0449_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0266_0.png",
+   "mask/CHNCXR_0266_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0134_0.png",
+   "mask/CHNCXR_0134_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0546_1.png",
+   "mask/CHNCXR_0546_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0398_1.png",
+   "mask/CHNCXR_0398_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0091_0.png",
+   "mask/CHNCXR_0091_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0279_0.png",
+   "mask/CHNCXR_0279_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0135_0.png",
+   "mask/CHNCXR_0135_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0111_0.png",
+   "mask/CHNCXR_0111_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0064_0.png",
+   "mask/CHNCXR_0064_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0075_0.png",
+   "mask/CHNCXR_0075_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0594_1.png",
+   "mask/CHNCXR_0594_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0002_0.png",
+   "mask/CHNCXR_0002_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0413_1.png",
+   "mask/CHNCXR_0413_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0530_1.png",
+   "mask/CHNCXR_0530_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0046_0.png",
+   "mask/CHNCXR_0046_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0550_1.png",
+   "mask/CHNCXR_0550_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0641_1.png",
+   "mask/CHNCXR_0641_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0330_1.png",
+   "mask/CHNCXR_0330_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0615_1.png",
+   "mask/CHNCXR_0615_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0417_1.png",
+   "mask/CHNCXR_0417_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0154_0.png",
+   "mask/CHNCXR_0154_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0444_1.png",
+   "mask/CHNCXR_0444_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0541_1.png",
+   "mask/CHNCXR_0541_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0468_1.png",
+   "mask/CHNCXR_0468_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0577_1.png",
+   "mask/CHNCXR_0577_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0572_1.png",
+   "mask/CHNCXR_0572_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0104_0.png",
+   "mask/CHNCXR_0104_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0368_1.png",
+   "mask/CHNCXR_0368_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0278_0.png",
+   "mask/CHNCXR_0278_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0178_0.png",
+   "mask/CHNCXR_0178_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0660_1.png",
+   "mask/CHNCXR_0660_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0019_0.png",
+   "mask/CHNCXR_0019_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0098_0.png",
+   "mask/CHNCXR_0098_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0067_0.png",
+   "mask/CHNCXR_0067_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0062_0.png",
+   "mask/CHNCXR_0062_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0659_1.png",
+   "mask/CHNCXR_0659_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0378_1.png",
+   "mask/CHNCXR_0378_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0614_1.png",
+   "mask/CHNCXR_0614_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0305_0.png",
+   "mask/CHNCXR_0305_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0128_0.png",
+   "mask/CHNCXR_0128_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0241_0.png",
+   "mask/CHNCXR_0241_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0268_0.png",
+   "mask/CHNCXR_0268_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0314_0.png",
+   "mask/CHNCXR_0314_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0297_0.png",
+   "mask/CHNCXR_0297_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0168_0.png",
+   "mask/CHNCXR_0168_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0448_1.png",
+   "mask/CHNCXR_0448_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0165_0.png",
+   "mask/CHNCXR_0165_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0582_1.png",
+   "mask/CHNCXR_0582_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0430_1.png",
+   "mask/CHNCXR_0430_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0006_0.png",
+   "mask/CHNCXR_0006_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0432_1.png",
+   "mask/CHNCXR_0432_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0281_0.png",
+   "mask/CHNCXR_0281_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0601_1.png",
+   "mask/CHNCXR_0601_1_mask.png"
+  ]
+ ],
+ "test": [
+  [
+   "CXR_png/CHNCXR_0329_1.png",
+   "mask/CHNCXR_0329_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0473_1.png",
+   "mask/CHNCXR_0473_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0404_1.png",
+   "mask/CHNCXR_0404_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0617_1.png",
+   "mask/CHNCXR_0617_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0438_1.png",
+   "mask/CHNCXR_0438_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0170_0.png",
+   "mask/CHNCXR_0170_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0391_1.png",
+   "mask/CHNCXR_0391_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0234_0.png",
+   "mask/CHNCXR_0234_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0292_0.png",
+   "mask/CHNCXR_0292_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0545_1.png",
+   "mask/CHNCXR_0545_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0589_1.png",
+   "mask/CHNCXR_0589_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0474_1.png",
+   "mask/CHNCXR_0474_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0380_1.png",
+   "mask/CHNCXR_0380_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0477_1.png",
+   "mask/CHNCXR_0477_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0467_1.png",
+   "mask/CHNCXR_0467_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0097_0.png",
+   "mask/CHNCXR_0097_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0123_0.png",
+   "mask/CHNCXR_0123_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0171_0.png",
+   "mask/CHNCXR_0171_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0609_1.png",
+   "mask/CHNCXR_0609_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0514_1.png",
+   "mask/CHNCXR_0514_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0325_0.png",
+   "mask/CHNCXR_0325_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0327_1.png",
+   "mask/CHNCXR_0327_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0254_0.png",
+   "mask/CHNCXR_0254_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0533_1.png",
+   "mask/CHNCXR_0533_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0296_0.png",
+   "mask/CHNCXR_0296_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0074_0.png",
+   "mask/CHNCXR_0074_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0294_0.png",
+   "mask/CHNCXR_0294_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0592_1.png",
+   "mask/CHNCXR_0592_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0605_1.png",
+   "mask/CHNCXR_0605_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0619_1.png",
+   "mask/CHNCXR_0619_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0114_0.png",
+   "mask/CHNCXR_0114_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0377_1.png",
+   "mask/CHNCXR_0377_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0662_1.png",
+   "mask/CHNCXR_0662_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0242_0.png",
+   "mask/CHNCXR_0242_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0047_0.png",
+   "mask/CHNCXR_0047_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0457_1.png",
+   "mask/CHNCXR_0457_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0272_0.png",
+   "mask/CHNCXR_0272_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0452_1.png",
+   "mask/CHNCXR_0452_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0137_0.png",
+   "mask/CHNCXR_0137_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0226_0.png",
+   "mask/CHNCXR_0226_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0232_0.png",
+   "mask/CHNCXR_0232_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0471_1.png",
+   "mask/CHNCXR_0471_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0011_0.png",
+   "mask/CHNCXR_0011_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0243_0.png",
+   "mask/CHNCXR_0243_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0026_0.png",
+   "mask/CHNCXR_0026_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0318_0.png",
+   "mask/CHNCXR_0318_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0387_1.png",
+   "mask/CHNCXR_0387_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0340_1.png",
+   "mask/CHNCXR_0340_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0050_0.png",
+   "mask/CHNCXR_0050_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0521_1.png",
+   "mask/CHNCXR_0521_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0390_1.png",
+   "mask/CHNCXR_0390_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0118_0.png",
+   "mask/CHNCXR_0118_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0301_0.png",
+   "mask/CHNCXR_0301_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0052_0.png",
+   "mask/CHNCXR_0052_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0654_1.png",
+   "mask/CHNCXR_0654_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0652_1.png",
+   "mask/CHNCXR_0652_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0372_1.png",
+   "mask/CHNCXR_0372_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0338_1.png",
+   "mask/CHNCXR_0338_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0384_1.png",
+   "mask/CHNCXR_0384_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0424_1.png",
+   "mask/CHNCXR_0424_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0386_1.png",
+   "mask/CHNCXR_0386_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0082_0.png",
+   "mask/CHNCXR_0082_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0139_0.png",
+   "mask/CHNCXR_0139_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0260_0.png",
+   "mask/CHNCXR_0260_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0153_0.png",
+   "mask/CHNCXR_0153_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0022_0.png",
+   "mask/CHNCXR_0022_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0460_1.png",
+   "mask/CHNCXR_0460_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0149_0.png",
+   "mask/CHNCXR_0149_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0574_1.png",
+   "mask/CHNCXR_0574_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0043_0.png",
+   "mask/CHNCXR_0043_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0276_0.png",
+   "mask/CHNCXR_0276_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0571_1.png",
+   "mask/CHNCXR_0571_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0319_0.png",
+   "mask/CHNCXR_0319_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0551_1.png",
+   "mask/CHNCXR_0551_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0225_0.png",
+   "mask/CHNCXR_0225_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0374_1.png",
+   "mask/CHNCXR_0374_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0611_1.png",
+   "mask/CHNCXR_0611_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0531_1.png",
+   "mask/CHNCXR_0531_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0099_0.png",
+   "mask/CHNCXR_0099_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0028_0.png",
+   "mask/CHNCXR_0028_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0071_0.png",
+   "mask/CHNCXR_0071_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0635_1.png",
+   "mask/CHNCXR_0635_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0526_1.png",
+   "mask/CHNCXR_0526_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0009_0.png",
+   "mask/CHNCXR_0009_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0636_1.png",
+   "mask/CHNCXR_0636_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0056_0.png",
+   "mask/CHNCXR_0056_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0331_1.png",
+   "mask/CHNCXR_0331_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0446_1.png",
+   "mask/CHNCXR_0446_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0051_0.png",
+   "mask/CHNCXR_0051_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0003_0.png",
+   "mask/CHNCXR_0003_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0647_1.png",
+   "mask/CHNCXR_0647_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0458_1.png",
+   "mask/CHNCXR_0458_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0034_0.png",
+   "mask/CHNCXR_0034_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0524_1.png",
+   "mask/CHNCXR_0524_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0277_0.png",
+   "mask/CHNCXR_0277_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0285_0.png",
+   "mask/CHNCXR_0285_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0321_0.png",
+   "mask/CHNCXR_0321_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0032_0.png",
+   "mask/CHNCXR_0032_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0174_0.png",
+   "mask/CHNCXR_0174_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0310_0.png",
+   "mask/CHNCXR_0310_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0579_1.png",
+   "mask/CHNCXR_0579_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0048_0.png",
+   "mask/CHNCXR_0048_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0018_0.png",
+   "mask/CHNCXR_0018_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0616_1.png",
+   "mask/CHNCXR_0616_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0559_1.png",
+   "mask/CHNCXR_0559_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0648_1.png",
+   "mask/CHNCXR_0648_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0393_1.png",
+   "mask/CHNCXR_0393_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0033_0.png",
+   "mask/CHNCXR_0033_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0326_0.png",
+   "mask/CHNCXR_0326_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0382_1.png",
+   "mask/CHNCXR_0382_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0475_1.png",
+   "mask/CHNCXR_0475_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0459_1.png",
+   "mask/CHNCXR_0459_1_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0151_0.png",
+   "mask/CHNCXR_0151_0_mask.png"
+  ],
+  [
+   "CXR_png/CHNCXR_0289_0.png",
+   "mask/CHNCXR_0289_0_mask.png"
+  ]
+ ]
+}
diff --git a/src/mednet/libs/segmentation/config/data/shenzhen/default.py b/src/mednet/libs/segmentation/config/data/shenzhen/default.py
new file mode 100644
index 0000000000000000000000000000000000000000..7db4f044a287d1a7aef95b60f91f3f8994a7b6e0
--- /dev/null
+++ b/src/mednet/libs/segmentation/config/data/shenzhen/default.py
@@ -0,0 +1,13 @@
+# SPDX-FileCopyrightText: Copyright © 2024 Idiap Research Institute <contact@idiap.ch>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+"""Shenzhen dataset for Lung Segmentation (default protocol).
+
+* Split reference: [GAAL-2020]_
+* Configuration resolution: 256 x 256
+* See :py:mod:`deepdraw.data.shenzhen` for dataset details
+"""
+
+from mednet.libs.segmentation.config.data.shenzhen.datamodule import DataModule
+
+datamodule = DataModule("default.json")
diff --git a/src/mednet/libs/segmentation/tests/data/histograms/models/histograms_lwnet_shenzhen_default.json b/src/mednet/libs/segmentation/tests/data/histograms/models/histograms_lwnet_shenzhen_default.json
new file mode 100644
index 0000000000000000000000000000000000000000..cf68b13c788721c00825a0d45b14b0d6bb861c31
--- /dev/null
+++ b/src/mednet/libs/segmentation/tests/data/histograms/models/histograms_lwnet_shenzhen_default.json
@@ -0,0 +1,23 @@
+{
+  "train": [
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+}
diff --git a/src/mednet/libs/segmentation/tests/data/histograms/raw_data/histograms_shenzhen_default.json b/src/mednet/libs/segmentation/tests/data/histograms/raw_data/histograms_shenzhen_default.json
new file mode 100644
index 0000000000000000000000000000000000000000..6f45bd1c74c1264bac17c6d36f1d3f2cc8555f8c
--- /dev/null
+++ b/src/mednet/libs/segmentation/tests/data/histograms/raw_data/histograms_shenzhen_default.json
@@ -0,0 +1,23 @@
+{
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+  ]
+}
diff --git a/src/mednet/libs/segmentation/tests/test_shenzhen.py b/src/mednet/libs/segmentation/tests/test_shenzhen.py
new file mode 100644
index 0000000000000000000000000000000000000000..9510d3e444aa9a19ee63e8678d38e57d7d568cd7
--- /dev/null
+++ b/src/mednet/libs/segmentation/tests/test_shenzhen.py
@@ -0,0 +1,133 @@
+# SPDX-FileCopyrightText: Copyright © 2024 Idiap Research Institute <contact@idiap.ch>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+"""Tests for shenzhen dataset."""
+
+import importlib
+
+import pytest
+from click.testing import CliRunner
+
+
+def id_function(val):
+    if isinstance(val, dict):
+        return str(val)
+    return repr(val)
+
+
+@pytest.mark.parametrize(
+    "split,lengths",
+    [
+        ("default", dict(train=396, validation=56, test=114)),
+    ],
+    ids=id_function,  # just changes how pytest prints it
+)
+def test_protocol_consistency(
+    database_checkers,
+    split: str,
+    lengths: dict[str, int],
+):
+    from mednet.libs.common.data.split import make_split
+
+    database_checkers.check_split(
+        make_split("mednet.libs.segmentation.config.data.shenzhen", f"{split}.json"),
+        lengths=lengths,
+    )
+
+
+@pytest.mark.skip_if_rc_var_not_set("datadir.shenzhen")
+def test_database_check():
+    from mednet.libs.segmentation.scripts.database import check
+
+    runner = CliRunner()
+    result = runner.invoke(check, ["--limit=20", "shenzhen"])
+    assert (
+        result.exit_code == 0
+    ), f"Exit code {result.exit_code} != 0 -- Output:\n{result.output}"
+
+
+@pytest.mark.skip_if_rc_var_not_set("datadir.shenzhen")
+@pytest.mark.parametrize(
+    "dataset",
+    [
+        "train",
+        "validation",
+        "test",
+    ],
+)
+@pytest.mark.parametrize(
+    "name",
+    [
+        "default",
+    ],
+)
+def test_loading(database_checkers, name: str, dataset: str):
+    datamodule = importlib.import_module(
+        f".{name}",
+        "mednet.libs.segmentation.config.data.shenzhen",
+    ).datamodule
+
+    datamodule.model_transforms = []  # should be done before setup()
+    datamodule.setup("predict")  # sets up all datasets
+
+    loader = datamodule.predict_dataloader()[dataset]
+
+    limit = 3  # limit load checking
+    for batch in loader:
+        if limit == 0:
+            break
+        database_checkers.check_loaded_batch(
+            batch,
+            batch_size=1,
+            color_planes=3,
+            expected_num_targets=1,
+        )
+        limit -= 1
+
+
+@pytest.mark.skip_if_rc_var_not_set("datadir.shenzhen")
+def test_raw_transforms_image_quality(database_checkers, datadir):
+    reference_histogram_file = str(
+        datadir / "histograms/raw_data/histograms_shenzhen_default.json",
+    )
+
+    datamodule = importlib.import_module(
+        ".default",
+        "mednet.libs.segmentation.config.data.shenzhen",
+    ).datamodule
+
+    datamodule.model_transforms = []
+    datamodule.setup("predict")
+
+    database_checkers.check_image_quality(datamodule, reference_histogram_file)
+
+
+@pytest.mark.skip_if_rc_var_not_set("datadir.shenzhen")
+@pytest.mark.parametrize(
+    "model_name",
+    ["lwnet"],
+)
+def test_model_transforms_image_quality(database_checkers, datadir, model_name):
+    reference_histogram_file = str(
+        datadir / f"histograms/models/histograms_{model_name}_shenzhen_default.json",
+    )
+
+    datamodule = importlib.import_module(
+        ".default",
+        "mednet.libs.segmentation.config.data.shenzhen",
+    ).datamodule
+
+    model = importlib.import_module(
+        f".{model_name}",
+        "mednet.libs.segmentation.config.models",
+    ).model
+
+    datamodule.model_transforms = model.model_transforms
+    datamodule.setup("predict")
+
+    database_checkers.check_image_quality(
+        datamodule,
+        reference_histogram_file,
+        compare_type="statistical",
+        pearson_coeff_threshold=0.005,
+    )