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pubmed:abstractText |
In this report we summarize the findings in a genetic-diagnostic survey of an institutionalized population of 173 severely mentally retarded patients. The etiological study was based on a clinical genetic approach with special attention for dysmorphology and neurological findings. A constitutional disorder, as the direct cause of the severe mental handicap, was found in 75 patients (43.35%). A detailed survey of the different data and findings are given, and compared with the results of previous studies.
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