Symptoms of gastritis.
D000208:Acute Disease; D001655:Bile Reflux / Q000473:pathology; D001706:Biopsy; D002908:Chronic Disease; D004382:Duodenitis / Q000473:pathology; D005756:Gastritis / Q000175:diagnosis* / Q000473:pathology; D005757:Gastritis, Atrophic / Q000473:pathology; D005758:Gastritis, Hypertrophic / Q000473:pathology; D005773:Gastroscopy; D006801:Humans