[1] Kellokoski Hosp, Kellokoski 04500, Finland
[2] Univ Helsinki, Helsinki, Finland
[3] Univ Helsinki, Cent Hosp, Dept Psychiat, Helsinki, Finland
[4] Univ East Finland, Niuvanniemi Hosp, Dept Forens Psychiat, Joensuu, Finland
[5] Natl Inst Hlth & Welf, Dept Mental Hlth & Alcohol Res, Helsinki, Finland
[6] Karolinska Inst, Dept Clin Neurosci, Stockholm, Sweden
[7] Univ Petrozavodsk, Dept Psychiat, Petrozavodsk, Russia