Research view
| Title: | The origins of mental deficiency in children and its problems |
| Author: | Peiser, J. |
| Abstract: |
120 children in a school for mentally retarded children with an IQ below 75 were examined. 40% of them were firstborn, 27% second, 12% third children. 19% were born of consanguineous parents (in comparison with 4% only in a "normal school" in Jerusalem).
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| Journal: | Harefuah, 33, 1947: 68-70 |