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- [47] EPIDEMIOLOGIC THINKING IN MENTAL-RETARDATION - ISSUES IN TAXONOMY AND POPULATION FREQUENCY INTERNATIONAL REVIEW OF RESEARCH IN MENTAL RETARDATION, VOL 19, 1993, 19 : 97 - 133
- [48] A PREVALENCE STUDY OF MENTAL-RETARDATION IN A METROPOLITAN AREA AMERICAN JOURNAL OF PUBLIC HEALTH AND THE NATIONS HEALTH, 1956, 46 (06): : 702 - 707