title: Perforated peptic ulcer in the elderly.
authors.forename: R M
authors.initials: RM
authors.lastname: Watkins
authors.forename: J
authors.initials: J
authors.lastname: Collin
mesh_terms: D000368:Aged; D000375:Aging; D005260:Female; D006801:Humans; D008131:London; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000453:epidemiology*; D012737:Sex Factors