title: [Hepatitis B--survey and control].
authors.affiliation: Seksjon for forebyggende infeksjonsmedisin, Statens Institutt for Folkehelse, Oslo.
authors.forename: A
authors.initials: A
authors.lastname: Lystad
mesh_terms: D006509:Hepatitis B / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D009664:Norway / Q000453:epidemiology