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Journal of intellectual disability research : JIDR [J Intellect Disabil Res] 2003 Oct; Vol. 47 (Pt 7), pp. 505-8.Publisher: Blackwell Scientific Publications on behalf of the Royal Society for Mentally Handicapped Children and Adults Country of Publication: England NLM ID:
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Science (New York, N.Y.) [Science] 1991 Sep 27; Vol. 253 (5027), pp. 1467.Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 0404511 Publication Model: Print Cited Medium: