%0 Journal Article %T Clozapine for treatment-refractory schizophrenia, schizoaffective disorder, and psychotic bipolar disorder: a 24-month naturalistic study. %A Ciapparelli, A %A Dell'Osso, L %A Pini, S %A Chiavacci, M C %A Fenzi, M %A Cassano, G B %J The Journal of clinical psychiatry %V 61 %N 5 %P 329-334 %@ 0160-6689 %D 2000-06-21 %~ DeepDyve