Preoperative evaluation of the patient with gastrointestinal or liver disease.
D004935:Esophageal Diseases / Q000175:diagnosis / Q000601:surgery; D005705:Gallbladder Diseases / Q000175:diagnosis / Q000601:surgery; D005767:Gastrointestinal Diseases / Q000601:surgery*; D006801:Humans; D007410:Intestinal Diseases / Q000175:diagnosis / Q000601:surgery; D008107:Liver Diseases / Q000175:diagnosis / Q000601:surgery*; D010437:Peptic Ulcer / Q000601:surgery; D011183:Postoperative Complications; D011300:Preoperative Care