1. AMERICAN PSYCHIATRIC ASSOCIATION. Diagnostic and Statistical Manual of mental disorders, 4th ed. Washington, DC: American Psychiatric Association, 1994.
2. Linguistic impairment in early psychosis;Anand;J Nerv Ment Dis,1994
3. Reliability and validity of proverb interpretation to assess mental status;Andreasen;Compr Psychiatry,1977
4. Thought, language and communication disorders;Andreasen;Arch Gen Psychiatry,1979
5. A method for distinguishing and evaluating formal thinking disorders in schizophrenia;Benjamin,1944