Qingdao University, Qingdao University, Shandong Medical University, Shandong University, Shandong University, Shandong First Medical University, Qingdao University - Yantai Yuhuangding Hospital, Weifang People's Hospital, Dongying People's Hospital, Qingdao University - Weihai Central Hospital, Qingdao University - Qingdao Municipal Hospital, Weihai Municipal Hospital, Jining People's Hospital, Rizhao People's Hospital, Rizhao People's Hospital, Qingdao University, Shandong First Medical University, Qingdao University, Qingdao University, Qingdao University, College of Medical Science, First Affiliated Hospital, Department of General Surgery, University of Copenhagen and Qingdao University

Fujian Medical University - Union Hospital, University of Science and Technology of China (USTC) - The First Affiliated Hospital of USTC, Qingdao University - Department of Gastrointestinal Surgery, Qingdao University - Affiliated Hospital, Fudan University - Huashan Hospital, Chinese Academy of Medical Sciences - National Cancer Center, Anhui Medical University - First Affiliated Hospital, Shanghai Jiao Tong University (SJTU), School of Medicine, Ren Ji Hospital, Department of Gastroenterology, Putian University - Affiliated Hospital, Qingdao University - Yantai Yuhuangding Hospital, Zhengzhou University - Henan Cancer Hospital, Fujian Medical University, Fujian Medical University - Provincial Clinical College, Tianjin Medical University - General Hospital, Nanjing Medical University - First Affiliated Hospital, Anhui Medical University - First Affiliated Hospital, Shandong University - Liaocheng People's Hospital, Fujian Medical University - Quanzhou First Hospital, Soochow University - First Affiliated Hospital, Shanghai Jiao Tong University (SJTU) - Rui-Jin Hospital, Nanchang University - Second Affiliated Hospital, Guangdong Academy of Medical Sciences - Guangdong Provincial People's Hospital, Meizhou People's Hospital, Fujian Medical University - Zhangzhou Affiliated Hospital, University of Electronic Science and Technology of China (UESTC) - Sichuan Academy of Medical Sciences, Fujian Medical University - Union Hospital, Fujian Medical University - Union Hospital, Fujian Medical University - Union Hospital and Fujian Medical University - Department of Gastric Surgery