Biliary surgery for benign disease: a study of 500 consecutive operations.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001660:Biliary Tract Diseases / Q000601:surgery*; D002648:Child; D002763:Cholecystectomy; D003135:Common Bile Duct / Q000601:surgery; D005260:Female; D042882:Gallstones / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged