No abstract available
MeSH terms
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Adolescent
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Age Factors
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Biopsy
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Child
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Child, Preschool
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Cytodiagnosis
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Cytogenetics
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Diagnosis, Differential
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Humans
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Intelligence Tests
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Karyotyping
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Klinefelter Syndrome / diagnosis*
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Male
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Puberty
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Sex Chromatin / analysis
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Testis / pathology