1. Department of Abdominal Oncology, Institute of Cancer Research & Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Zhejiang 310022, PR China
2. School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
3. Department of Colorectal Surgery, Institute of Cancer Research & Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, PR China
4. Department of Radiotherapy, Institute of Cancer Research & Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, PR China
5. Department of Pathology, Institute of Cancer Research & Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, PR China