1. Department of Hepatobiliary Surgery/Hunan Research Center of Biliary Disease, Hunan Provincial People’s Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, 410005 Hunan Province, China
2. Biliary Disease Research Laboratory of Hunan Provincial People’s Hospital, Key Laboratory of Hunan Normal University, Changsha, 410005 Hunan Province, China
3. Clinical Medical Technology Research Center of Hunan Provincial for Biliary Disease Prevention and Treatment, Changsha, 410005 Hunan Province, China
4. Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410018 Hunan Province, Hunan, China