[Preoperative care in gastroenterology].
D013505:Digestive System Surgical Procedures; D005762:Gastroenterology; D041981:Gastrointestinal Tract / Q000601:surgery*; D006801:Humans; D011300:Preoperative Care
GASTROINTESTINAL SYSTEM/surgery; PREOPERATIVE CARE
Preoperatorio en gastroenterologäa.