1. Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
2. Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, People’s Republic of China
3. Department of General Surgery, Jinan Central Hospital, Shandong University, Jinan, People’s Republic of China
4. Department of Nuclear Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
5. Department of Colorectal Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
6. Department of Bariatric and Metabolic Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
7. Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, People’s Republic of China
8. Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China