title: Retrieval of obtained common bile duct stones.
mesh_terms: D000368:Aged; D002763:Cholecystectomy; D004864:Equipment and Supplies; D042882:Gallstones / Q000628:therapy*; D006493:Heparin / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000628:therapy
chemical_list: D006493:Heparin