1. Department of Hepatobiliary Surgery, The Fuzhou Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350025, P.R. China
2. Department of Surgery, Fuzhou Hospital of Traditional Chinese Medicine, Fuzhou, Fujian 350025, P.R. China
3. Department of Hepatobiliary Surgery, Fuzhou General Hospital, Fuzhou, Fujian 350025, P.R. China