1. Department of Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing 100142, P.R. China
2. Department of Central Biobank, Peking University Cancer Hospital and Institute, Beijing 100142, P.R. China
3. Department of Pathology, Peking University Cancer Hospital and Institute, Beijing 100142, P.R. China
4. Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
5. K2 Oncology Co., Ltd., Beijing 100061, P.R. China