[1] Department of Medical Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
[2] Department of Medical Oncology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
[3] Department of Medical Oncology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
[4] Department of Medical Oncology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
[5] Department of Medical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
[6] Department of Medical Oncology, Sun Yat-sen Medical Hospital Sun Yat-sen University, Guangzhou, China
[7] Medical Oncology, Chinese PLA General Hospital, Beijing, China
[8] Department of Gastrointestinal Oncology, Shanxi Provincial Cancer Hospital, Affiliated to Shanxi Medical University, Taiyuan, China
[9] Department of Clinical Oncology, Xijing Hospital, Air Force Medical University, Xi’an, China
[10] Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Military Medical University), Chongqing, China
[11] Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/ Beijing), Peking University Cancer Hospital &
[12] Institute, Beijing, China
[13] Cancer Center, Department of Medical Oncology, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
[14] Department of Medical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
[15] Oncology Department, Xin Hua Hospital Affiliated to Shanghai JiaoTong University School of Medicine, Shanghai, China
[16] Department of Oncology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China
[17] Department of Oncology, The First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, China
[18] Department of Oncology, People’s Hospital of Xinjiang Uygur Autonomous Region, Xinjiang, China
[19] Department of Medical Oncology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
[20] Department of Medical Oncology, Hainan Genderal Hospital, Haikou, China
[21] Division of Medical Oncology, Peking Union Medical College Hospital, Beijing, China
[22] Department of Oncology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
[23] Department of Medical Oncology, Shanghai Zhongshan Hospital, Fudan University, Shanghai, China
[24] Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
[25] Department of Medical Oncology, Changhai Hospital of Shanghai, Navy Medical University, Shanghai, China
[26] Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University, Clinical Cancer Institute of Nanjing University, Nanjing, China
[27] Department of Medical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, School of Medicine, Hangzhou, China
[28] Department of Medical Oncology, Xiangya Hospital Central South University, Changsha, China
[29] Department of Medical Oncology, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
[30] Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
[31] Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, China
[32] Department of Medical Oncology, West China Hospital, Sichuan University, Chengdu, China
[33] Department of Medical Oncology, Qinghai Provincial People’s Hospital, Xi’ning, China
[34] Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, China
[35] Department of Oncology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai,