title: Breaking up residual gallstones with an ultrasonic drill.
mesh_terms: D000368:Aged; D002758:Cholangiography; D002769:Cholelithiasis / Q000000981:diagnostic imaging / Q000628:therapy*; D006500:Hepatic Duct, Common; D006801:Humans; D008297:Male; D011182:Postoperative Care; D014464:Ultrasonic Therapy / Q000295:instrumentation*