ResNet-50 from MedicalNet

This is a 3D ResNet-50 model pre-trained on 23 medical datasets, originally provided by https://github.com/Tencent/MedicalNet. This version has been adapted to support CPU-only execution, enabling broader accessibility and compatibility for research and deployment in environments without GPU support. The model maintains the original architecture and weights for the backbone, with minor modifications to ensure compatibility outside of CUDA-based systems (i.e., removal of DataParallel-related prefixes in the state dictionary).