title: The aging gut. I. Diseases of the esophagus, small intestine, and appendix.
mesh_terms: D000368:Aged; D000375:Aging; D001064:Appendicitis / Q000175:diagnosis; D004931:Esophageal Achalasia / Q000175:diagnosis; D004935:Esophageal Diseases / Q000175:diagnosis; D004938:Esophageal Neoplasms / Q000175:diagnosis; D005750:Gastric Juice / Q000378:metabolism; D005753:Gastric Mucosa / Q000378:metabolism; D005756:Gastritis / Q000175:diagnosis; D005769:Gastrointestinal Motility; D006548:Hernia, Diaphragmatic / Q000175:diagnosis; D006801:Humans; D007410:Intestinal Diseases / Q000175:diagnosis; D007414:Intestinal Neoplasms / Q000175:diagnosis; D008286:Malabsorption Syndromes / Q000175:diagnosis; D010437:Peptic Ulcer / Q000175:diagnosis; D011178:Postgastrectomy Syndromes / Q000175:diagnosis; D013272:Stomach Diseases / Q000175:diagnosis