The pyloric antrum in patients with gastric ulcer.
D001706:Biopsy; D005753:Gastric Mucosa / Q000473:pathology*; D005756:Gastritis / Q000150:complications; D005773:Gastroscopy; D006801:Humans; D011708:Pylorus / Q000473:pathology*; D013276:Stomach Ulcer / Q000209:etiology / Q000473:pathology*