No abstract available
MeSH terms
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Achievement
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Age Factors
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Birth Weight
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Child
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Child, Preschool
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Developmental Disabilities / diagnosis*
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Female
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Humans
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Infant
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Intellectual Disability / diagnosis
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Language Disorders / diagnosis
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Male
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Mass Screening
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Mathematics
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Motor Skills
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Movement Disorders / diagnosis
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Personality Disorders / diagnosis
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Psychological Tests / standards*
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Social Class
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Wales