[1] Univ Oslo, Div Mental Hlth & Addict, Oslo Univ Hosp, Oslo, Norway
[2] Univ Oslo, Inst Clin Med, Oslo, Norway
[3] UiT Arctic Univ Norway, Dept Clin Med, Tromso, Norway
[4] Univ Hosp North Norway, Dept Mental Hlth & Subst Abuse, Tromso, Norway
[5] Univ Oslo, NORMENT Ctr Excellence, Div Mental Hlth & Addict, Oslo Univ Hosp, Oslo, Norway
[6] Diakonhjemmet Hosp, Div Mental Hlth & Subst Abuse, Oslo, Norway
[7] Univ Bergen, NORMENT Ctr Excellence, Div Psychiat, Haukeland Univ Hosp, Bergen, Norway
[8] Univ Bergen, Dept Clin Med, Bergen, Norway
[9] St Olavs Univ Hosp, Div Mental Hlth, Trondheim, Norway
[10] NTNU, Dept Acute Psychiat, St Olavs Univ Hosp, Trondheim, Norway
[11] NTNU, Dept Mental Hlth, Trondheim, Norway
[12] Oslo Univ Hosp, Sect Prevent Cardiol Endocrinol Morbid Obes & Pre, Oslo, Norway
[13] Vestfold Hosp Trust, Div Mental Hlth & Addict, Tonsberg, Norway