title: Complications of routine diagnostic upper endoscopy.
mesh_terms: D000368:Aged; D002432:Cecum / Q000293:injuries*; D004384:Duodenoscopy / Q000009:adverse effects*; D004945:Esophagoscopy / Q000009:adverse effects*; D006801:Humans; D007416:Intestinal Perforation / Q000209:etiology*; D008297:Male