title: Nonvariceal upper gastrointestinal bleeding: is it all about comorbidities?
authors.forename: Yeong Yeh
authors.initials: YY
authors.lastname: Lee
authors.forename: Nordin
authors.initials: N
authors.lastname: Noridah
mesh_terms: D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000453:epidemiology*; D006801:Humans; D008297:Male; D010437:Peptic Ulcer / Q000453:epidemiology*; D041742:Upper Gastrointestinal Tract