No abstract available
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Adolescent
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Case-Control Studies
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Child
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Child Development Disorders, Pervasive / genetics
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Child, Preschool
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Developmental Disabilities / genetics*
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Epigenesis, Genetic / physiology*
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Fragile X Mental Retardation Protein / genetics*
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Gene Frequency
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Genetic Linkage
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Humans
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Male
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Trinucleotide Repeat Expansion / genetics*
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Young Adult
Substances
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FMR1 protein, human
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Fragile X Mental Retardation Protein