Peptic ulcer in airline stewards.
D000328:Adult; D000337:Aerospace Medicine; D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D009784:Occupational Diseases / Q000453:epidemiology*; D010437:Peptic Ulcer / Q000453:epidemiology* / Q000401:mortality; D010438:Peptic Ulcer Hemorrhage / Q000453:epidemiology; D010439:Peptic Ulcer Perforation / Q000453:epidemiology; D012189:Retrospective Studies; D012737:Sex Factors