[1] Vrije Univ, Dept Psychiat, VUmc, NL-1075 BG Amsterdam, Netherlands
[2] GGZ Buitenamstel, NL-1075 BG Amsterdam, Netherlands
[3] Municipal Hlth Serv Amsterdam, Dept Epidemiol & Hlth Promot, Amsterdam, Netherlands
[4] Netherlands Inst Mental Hlth & Addict, Trimbos Inst, Utrecht, Netherlands