Selective use of operative cholangiography.
D000368:Aged; D000369:Aged, 80 and over; D002758:Cholangiography; D002763:Cholecystectomy; D002769:Cholelithiasis / Q000601:surgery; D005260:Female; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008875:Middle Aged