Shandong First Medical University - Department of Endocrinology and Metabolism, Qingdao University, College of Medical Science, First Affiliated Hospital, Department of General Surgery, Shandong University, School of Medicine, Shandong Provincial Qianfoshan Hospital, Department of Paediatrics, Shandong First Medical University - Department of Endocrinology and Metabolism, Shandong First Medical University - Department of Endocrinology and Metabolism, Shandong First Medical University - Department of Endocrinology and Metabolism, Shandong First Medical University - Department of Endocrinology and Metabolism, Shandong First Medical University - Department of Endocrinology and Metabolism, Shandong First Medical University - Science and Technology Innovation Center, Shandong First Medical University - Department of Endocrinology and Metabolism, Shandong First Medical University - Department of Paediatrics and Shandong First Medical University - Department of Endocrinology and Metabolism

Qingdao University, College of Medical Science, First Affiliated Hospital, Department of General Surgery, Qingdao University, Qingdao University, Qingdao University, Qingdao University, Shandong University and Qingdao University - Department of Gastrointestinal Surgery

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