1. Keith SJ, Regier DA, Rae DS (1991) Schizophrenic disorders. In: Robins LN, Regier DA (eds) Psychiatric disorders in America. The Free Press, New York, pp. 33–52
2. Fein R (1958) Economics of mental illness. Basic Books, New York
3. US Department of Labor (1992) Consumer price index. Bureau of Labor Statistics, Washington, DC
4. US Bureau of the Census (1991) Statistical abstract of the United States: 1991. Washington, DC
5. Robins LN, Regier DA (1991) Psychiatric disorders in America: the Epidemiologic Catchment Area Study. The Free Press, New York