1. Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
2. Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, Guizhou 550009, P.R. China
3. Department of Biliary‑Pancreatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430060, P.R. China
4. Department of Liver‑Biliary Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550009, P.R. China