[1] Norwegian Inst Publ Hlth, PsychGen Ctr Genet Epidemiol & Mental Hlth, POB 222, N-0213 Skoyen, Oslo, Norway
[2] Norwegian Inst Publ Hlth, Dept Child Hlth & Dev, Oslo, Norway
[3] Univ Oslo, Dept Psychol, Oslo, Norway
[4] Norwegian Inst Publ Hlth, Ctr Dis Burden, Bergen, Norway
[5] Norwegian Inst Publ Hlth, Dept Mental Hlth & Suicide, Oslo, Norway
[6] Lovisenberg Diaconal Hosp, Nic Waals Inst, Oslo, Norway
[7] Univ Oslo, Dept Psychol, PROMENTA, Oslo, Norway