[First episode of Chinese biliary surgery--Chengdu experience in 1940s].
Yang
Z H
ZH
Zeng
Z Y
ZY
Ran
R T
RT
D001649:Bile Duct Diseases / Q000601:surgery; D002681:China; D013502:General Surgery / Q000266:history*; D049673:History, 20th Century; D006801:Humans