[1] Rivierduinen Psychiat Inst, Leiden, Netherlands
[2] Dutch Clozapine Collaborat Grp, Mental Hlth Serv Noord Holland Noord, Castricum, Netherlands
[3] Dutch Clozapine Collaborat Grp, Rivierduinen Ctr Mental Hlth, Castricum, Netherlands
[4] Maastricht Univ, Med Ctr, Inst Mental Hlth Care Eindhoven GGzE, Maastricht, Netherlands
[5] Univ Med Ctr Groningen, Groningen, Netherlands
[6] Maastricht Univ, Rivierduinen Mental Hlth Care Inst, Maastricht, Netherlands