[Aging signs in the gastrointestinal tract--endoscopic diagnosis and the significance of gastric intestinal metaplasia].
D000328:Adult; D000368:Aged; D000375:Aging / Q000473:pathology*; D000818:Animals; D002908:Chronic Disease; D004064:Digestive System / Q000473:pathology; D005753:Gastric Mucosa / Q000473:pathology*; D005756:Gastritis / Q000175:diagnosis; D005757:Gastritis, Atrophic / Q000175:diagnosis; D005773:Gastroscopy; D006801:Humans; D008679:Metaplasia / Q000175:diagnosis; D008875:Middle Aged