title: [Bipolar disorder--a psychiatric core illness].
authors.affiliation: Institutionen för medicinsk epidemiologi och biovetenskap, Karolinska institutet, Huddinge.
authors.forename: Hans
authors.initials: H
authors.lastname: Agren
authors.forename: Mikael
authors.initials: M
authors.lastname: Landén
authors.forename: Jerker
authors.initials: J
authors.lastname: Hetta
mesh_terms: D001714:Bipolar Disorder / Q000175:diagnosis / Q000453:epidemiology / Q000235:genetics / Q000628:therapy; D015897:Comorbidity; D017281:Cost of Illness; D006801:Humans; D017063:Outcome Assessment, Health Care