1. Department of Radiology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
2. Institute of Systems Science, National University of Singapore, Queenstown, Singapore
3. Department of Computer Science and Technology, Nanjing University, Nanjing, China
4. School of Artificial Intelligence, Institute for AI in Medicine, Nanjing University of Information Science and Technology, Nanjing, China