1. Gradate School of Information Science and Engineering, Ritsumeikan University, Kyoto, Japan
2. Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
3. College of Information Science and Engineering, Ritsumeikan University, Kyoto, Japan
4. Graduate School of Artificial Intelligence and Science, Rikkyo University, Tokyo, Japan
5. Department of Information and Communication Engineering, Osaka Electro-Communication University, Osaka, Japan
6. Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, China
7. College of Computer Science and Technology, Zhejiang University, Hangzhou, China