Perforated peptic ulcer: mortality and morbidity in 603 cases.
D000428:Alcohol Drinking; D001315:Australia; D001515:Beer; D005260:Female; D006801:Humans; D008297:Male; D010439:Peptic Ulcer Perforation / Q000175:diagnosis / Q000453:epidemiology* / Q000401:mortality* / Q000601:surgery; D012189:Retrospective Studies; D012621:Seasons; D012737:Sex Factors