1. College of Pharmacy, Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China
2. Laboratory of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
3. Department of Thoracic Surgery, Chongqing General Hospital, Chongqing 400013, P.R. China