The pyloroduodenum and gastric resection.
D004386:Duodenum / Q000601:surgery*; D005743:Gastrectomy; D006801:Humans; D010437:Peptic Ulcer / Q000601:surgery*; D013270:Stomach / Q000601:surgery*
DUODENUM/surgery; PEPTIC ULCER/surgery; STOMACH/surgery