1. American Psychiatric Association, 1994. DSM-IVR: Diagnostic and Statistical Manual of Mental Disorders, 4th ed., American Psychiatric Press, Washington, DC.
2. Andreasen, N., 1983. Comprehensive Assessment of Symptoms and History. The University of Iowa College of Medicine, Iowa City.
3. Cognitively disorganized schizophrenia: a taxometric analysis of PANSS Ratings;Bell;Schizophrenia Res,1997
4. Five component model of schizophrenia: factorial invariance of the PANSS;Bell;Psychiatry Res.,1994
5. Concurrent validity of the cognitive component of schizophrenia: relationship of PANSS scores to neuropsychological assessments;Bell;Psychiatry Res.,1994