title: Community-Acquired Pneumonia Requiring Hospitalization.
authors.forename: Pedro J
authors.initials: PJ
authors.lastname: Marcos
authors.forename: Marcos I
authors.initials: MI
authors.lastname: Restrepo
authors.forename: Antonio
authors.initials: A
authors.lastname: Anzueto
mesh_terms: D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D011014:Pneumonia / Q000453:epidemiology*