1. Albee GW, Lane EA, Corcoran C, Werneke A (1963) Childhood and inter-current intellectual performance of adult schizophrenics. J Consult Psychology 27 (4): 364–366
2. Ambelas A (1992) Preschizophrenics: adding to the evidence, sharpening the focus. Br J Psychiatry 160: 401–404
3. American Psychiatric Association (1987) Diagnostic and Statistical Manual of Mental Disorders. Third Edn - Revised. Washington, DC: American Psychiatric Association
4. Andreasson S, Allebeck P, Engstrom A, Rydberg U (1987) Cannabis and schizophrenia. A longitudinal study of Swedish conscripts. Lancet ií:1483–1486
5. Aylward E, Walker E, Bettes B (1984) Intelligence in schizophrenia: meta-analysis of the research. Schizophrenia Bull 10: 430–459