title: Improvement requires good data.
authors.affiliation: Asker og Bærum Hospital, Vestre Viken, 1309 Rud, Norway. mette.walberg@vestreviken.no
authors.forename: Mette
authors.initials: M
authors.lastname: Walberg
mesh_terms: D003428:Cross Infection / Q000453:epidemiology / Q000517:prevention & control; D006040:Goals; D006801:Humans; D017053:Infection Control / Q000592:standards; D009664:Norway / Q000453:epidemiology; D015995:Prevalence