title: [Author's reply].
authors.affiliation: Atención Primaria, Osakidetza, Centro de Salud de Idiazabal, Guipúzcoa, España. Electronic address: mariaisabelirizar@gmail.com.
authors.forename: Maria Isabel
authors.initials: MI
authors.lastname: Irizar Aramburu
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D011014:Pneumonia / Q000453:epidemiology* / Q000382:microbiology*