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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Phenotype of 49,XXYYY.

A 7-year-old boy with 49,XXYYY karyotype is reported. Physical examination revealed facial dysmorphism, mild microcephaly, limitation of supination at the elbows, delayed bone age and moderate mental retardation.[1]


  1. Phenotype of 49,XXYYY. Das, G.P., Shukla, A., Verma, I.C. Clin. Genet. (1993) [Pubmed]
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