title: [Retraction of article].
authors.forename: Rune
authors.initials: R
authors.lastname: Midgard
authors.forename: Johan H
authors.initials: JH
authors.lastname: Seland
authors.forename: Herald
authors.initials: H
authors.lastname: Hovdal
authors.forename: Elisabeth Gulowsen
authors.initials: EG
authors.lastname: Celius
authors.forename: Ketil
authors.initials: K
authors.lastname: Eriksen
authors.forename: Ditlev
authors.initials: D
authors.lastname: Jensen
authors.forename: Hilde
authors.initials: H
authors.lastname: Heger
authors.forename: Svein Ivar
authors.initials: SI
authors.lastname: Mellgren
authors.forename: Alexandra
authors.initials: A
authors.lastname: Wexler
authors.forename: Antonie Giaever
authors.initials: AG
authors.lastname: Beiske
authors.forename: Kjell-Morten
authors.initials: KM
authors.lastname: Myhr