Abdominal surgery (first of three parts).
D000005:Abdomen / Q000601:surgery*; D000328:Adult; D000818:Animals; D002648:Child; D004377:Dumping Syndrome / Q000601:surgery; D004381:Duodenal Ulcer / Q000601:surgery; D004935:Esophageal Diseases / Q000601:surgery; D004942:Esophagitis, Peptic / Q000601:surgery; D004944:Esophagoplasty; D005743:Gastrectomy; D006471:Gastrointestinal Hemorrhage / Q000601:surgery; D006801:Humans; D006949:Hyperlipidemias / Q000601:surgery; D007223:Infant; D007231:Infant, Newborn; D007412:Intestinal Fistula / Q000601:surgery; D007415:Intestinal Obstruction / Q000601:surgery; D007422:Intestines / Q000601:surgery; D009765:Obesity / Q000601:surgery; D010289:Parenteral Nutrition, Total; D011178:Postgastrectomy Syndromes; D011183:Postoperative Complications; D051381:Rats; D013274:Stomach Neoplasms / Q000601:surgery; D013276:Stomach Ulcer / Q000601:surgery; D014628:Vagotomy