Path to store pretrained models.
We used a pretrained 3D ResNet from: https://github.com/Tencent/MedicalNet
Pretrained model weights for the model 'resnet_50_23dataset.pth' are available at: https://drive.google.com/file/d/13tnSvXY7oDIEloNFiGTsjUIYfS3g3BfG/view?usp=sharing
