1. Department of Gastrointestinal Oncology Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing) Peking University Cancer Hospital & Institute Beijing 100142 P. R. China
2. Department of Pathology Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing) Peking University Cancer Hospital & Institute Beijing 100142 P. R. China
3. Department of Medical Affairs 3D Medicines, Inc. Shanghai 201199 P. R. China
4. Department of Oncology Shenzhen Key Laboratory of Gastrointestinal Cancer Translational Research Cancer Institute Peking University Shenzhen Hospital Shenzhen‐Peking University‐Hong Kong University of Science and Technology Medical Center Shenzhen 518000 P. R. China