作者单位:Sichuan Univ, West China Hosp, Dept Liver Surg, Chengdu 610041, Sichuan Provinc, Peoples R China[1]Sichuan Univ, West China Hosp, Dept Pancreat Surg, Chengdu 610041, Sichuan Provinc, Peoples R China[2]Sichuan Univ, West China Hosp, Dept Integrated Tradit & Western Med, Chengdu 610041, Sichuan[3]