Location of metaplasia in relation to duodenal and gastric ulcer.
D004386:Duodenum; D006801:Humans; D008679:Metaplasia; D010437:Peptic Ulcer / Q000502:physiology*; D013272:Stomach Diseases; D013276:Stomach Ulcer
METAPLASIA; PEPTIC ULCER/physiology; STOMACH/diseases