[1] Univ Bergen, Dept Clin Med, Sect Psychiat, N-5020 Bergen, Norway
[2] Haukeland Hosp, MoodNet Res Grp, N-5021 Bergen, Norway
[3] Deakin Univ, Barwon Psychiat Res Unit, Sch Med, Geelong, Vic 3220, Australia
[4] Univ Melbourne, Dept Psychiat, Parkville, Vic 3052, Australia
[5] Orygen Youth Hlth Res Ctr, Parkville, Vic, Australia
[6] Mental Hlth Res Inst, Parkville, Vic, Australia
[7] Deakin Univ, Sch Med, Barwon Epidemiol & Biostat Unit, Geelong, Vic 3220, Australia
[8] Univ Melbourne, NW Acad Ctr, Dept Med, St Albans, Australia