The surgery of some strictures and stenoses. Stenoses of the biliary tract.
D001650:Bile Duct Neoplasms; D001659:Biliary Tract / Q000293:injuries; D001660:Biliary Tract Diseases / Q000209:etiology / Q000601:surgery*; D003250:Constriction; D006500:Hepatic Duct, Common; D006801:Humans