No abstract available
MeSH terms
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Abdominal Pain / epidemiology*
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Child
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Child Development
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Disability Evaluation*
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Female
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Humans
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Male
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Pain / diagnosis
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Pain / epidemiology*
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Siblings / psychology*
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Somatoform Disorders / diagnosis
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Somatoform Disorders / epidemiology*
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Somatoform Disorders / psychology*