title: [Factor associated with prolonged hospital stay in patients with H1N1 virus influenza].
authors.forename: Enrique
authors.initials: E
authors.lastname: Bernal
authors.forename: Angeles
authors.initials: A
authors.lastname: Muñoz
authors.forename: Alfredo
authors.initials: A
authors.lastname: Cano
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology / Q000628:therapy; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D011024:Pneumonia, Viral / Q000453:epidemiology / Q000628:therapy; D011446:Prospective Studies; D055815:Young Adult