title: Reply: To PMID 23470619.
authors.forename: Colin J
authors.initials: CJ
authors.lastname: Crooks
authors.forename: Joe
authors.initials: J
authors.lastname: West
authors.forename: Timothy R
authors.initials: TR
authors.lastname: Card
mesh_terms: D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000453:epidemiology*; D006801:Humans; D008297:Male; D010437:Peptic Ulcer / Q000453:epidemiology*; D041742:Upper Gastrointestinal Tract