Preparation of the geriatric patient undergoing surgery of the biliary tract.
D000368:Aged / Q000601:surgery; D001659:Biliary Tract / Q000601:surgery*; D001662:Biliary Tract Surgical Procedures; D006801:Humans; D010361:Patients; D011182:Postoperative Care; D011300:Preoperative Care
AGED/surgery; BILIARY TRACT/surgery; POSTOPERATIVE CARE; PREOPERATIVE CARE