The Fifth Medical Center, Chinese PLA General Hospital, Beijing, China, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China, Hunan Cancer Hospital, Changsha, China, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China, Zhejiang Cancer Hospital, Hangzhou, China, Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China, Sun Yat-sen University Cancer Center, Guangzhou, China, Hubei Cancer Hospital, Affiliated Hubei Cancer Hospital of Huazhong University of Science and Technology, Wuhan, China, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, China, Zhongshan Hospital, Fudan University, Shanghai, China, The First Affiliated Hospital of Nanchang University, Nanchang, China, Hunan People's Hospital, Changsha, China, Henan Cancer Hospital, Zhengzhou, China, West China Hospital of Sichuan University, Chengdu, China, Guangxi Medical University Affiliated Tumor Hospital, Nanning, China, Guangdong Provincial People's Hospital, Guangzhou, China, Xiangya Hospital Central South University, Changsha, China, Jiangsu Hengrui Medicine Co., Ltd., Shanghai, China