[1] Chinese Univ Hong Kong, Li Ka Shing Inst Hlth Sci, Fac Med, Shatin, Hong Kong, Peoples R China
[2] Xiangnan Univ, Affiliated Hosp, Dept Hepatobiliary Surg, Chenzhou, Hunan, Peoples R China
[3] Hunan Univ Med, Affiliated Hosp 1, Dept Hepatobiliary Surg, Huaihua, Peoples R China
[4] Hunan Univ Med, Affiliated Hosp 1, 144 Jinxi South Rd, Huaihua, Hunan, Peoples R China