No abstract available
MeSH terms
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Autistic Disorder / diagnosis*
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Autistic Disorder / epidemiology*
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Brazil / epidemiology
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Child
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Child, Preschool
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Comorbidity
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Down Syndrome / diagnosis*
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Down Syndrome / epidemiology*
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Evaluation Studies as Topic
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Female
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Humans
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Male
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Mass Screening / methods*
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Prevalence
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Sensitivity and Specificity
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Surveys and Questionnaires / standards*