Selection of the operation for duodenal ulcer.
D004381:Duodenal Ulcer / Q000601:surgery*; D005743:Gastrectomy / Q000009:adverse effects; D005745:Gastric Acidity Determination; D006801:Humans; D007583:Jejunum / Q000601:surgery; D011178:Postgastrectomy Syndromes; D013276:Stomach Ulcer / Q000209:etiology; D014628:Vagotomy / Q000009:adverse effects