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Visootsak, Jeannie; Graham, John M., Jr. – Developmental Disabilities Research Reviews, 2009
Klinefelter syndrome (47,XXY) was initially described in the context of its endocrinologic and physical features; however, subsequent studies have revealed specific impairments in verbal skills and social functioning. Males with sex chromosomal aneuploidies are known to have variability in their developmental profile with the majority presenting…
Descriptors: Genetic Disorders, Males, Sex, Genetics

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