Gastrointestinal diseases in the elderly.
D000368:Aged; D003110:Colonic Neoplasms / Q000628:therapy; D004239:Diverticulitis, Colonic; D004935:Esophageal Diseases / Q000628:therapy; D005767:Gastrointestinal Diseases / Q000175:diagnosis / Q000628:therapy; D005770:Gastrointestinal Neoplasms / Q000628:therapy; D006801:Humans; D007415:Intestinal Obstruction / Q000628:therapy; D010182:Pancreatic Diseases / Q000628:therapy; D010437:Peptic Ulcer / Q000628:therapy; D013272:Stomach Diseases / Q000628:therapy