title: [Screening: why and how].
authors.affiliation: Instituto de Salud Pública y Laboral de Navarra, Pamplona, 31003, Spain. nascunce@navarra.es.
authors.forename: N
authors.initials: N
authors.lastname: Ascunce Elizaga
mesh_terms: D042241:Early Diagnosis; D006801:Humans; D008403:Mass Screening / Q000592:standards