1. Diagnostic and Statistical Manual of Mental Disorders;American Psychiatric Association,1987
2. Scale for the Assessment of Negative Symptoms (SANS);Andreasen,1983
3. The family history approach to diagnosis. How useful is it?;Andreasen;Arch. Gen. Psychiatry,1986
4. Ventricular enlargement in schizophrenia evaluated with computed tomographic scanning. Effects of gender, age, and stage of illness;Andreasen;Arch. Gen. Psychiatry,1990
5. Subtyping in Chronic Schizophrenia: Clinical, Neuropsychological, and Structural Indices of Deterioration;Bilder,1985