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3. Hammond, W. A. (1879): quoted in Rothman, D. (1971): The Discovery of the Asylum. Little, Brown. Boston.
4. Hershon, H. I.; Cook, T., and Foldes, P. A. (1974): Brit. J. Psychiat., 124, 327.
5. Home Office and Department of Health and Social Security (1974): Interim Report of the Committee on Mentally Abnormal Offenders. H. M. S. O. London.