The localization of ulcer as related to the histology of gastric mucosa.
D005743:Gastrectomy; D005745:Gastric Acidity Determination; D005753:Gastric Mucosa / Q000473:pathology*; D006801:Humans; D011708:Pylorus / Q000601:surgery; D012008:Recurrence; D013276:Stomach Ulcer / Q000473:pathology* / Q000601:surgery