Author/Authors :
chen, ji-ye chinese pla postgraduate medical school - hospital and institute of hepatobiliary surgery, chinese pla general hospital, Beijing, China , cai, shou-wang chinese pla postgraduate medical school - hospital and institute of hepatobiliary surgery, chinese pla general hospital, Beijing, China , liu, zhi-wei chinese pla postgraduate medical school - hospital and institute of hepatobiliary surgery, chinese pla general hospital, Beijing, China , xing, xian-lei chinese pla postgraduate medical school - hospital and institute of hepatobiliary surgery, chinese pla general hospital, Beijing, China