[1] HUDDINGE UNIV HOSP, KAROLINSKA INST, DEPT PSYCHIAT, S-14186 HUDDINGE, SWEDEN
[2] ODENSE UNIV HOSP, SUICIDOL RES UNIT, DK-5000 ODENSE, DENMARK
[3] UNIV TRONDHEIM, DEPT PSYCHOL, N-7055 DRAGVOLL, NORWAY
[4] UMEA UNIV, DEPT PSYCHIAT, S-90187 UMEA, SWEDEN
[5] NATL HLTH INST, MENTAL HLTH RES UNIT, HELSINKI, FINLAND