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Chromosome banding studies in two patients with XXXXY syndrome.
  1. C L Levy,
  2. R S Sparkes,
  3. H E Carlson


    In 2 adult male patients with 49 chromosomes, an XXXXY sex chromosome constitution was confirmed by trypsin-Giemsa banding sites. Clinical findings as well as fingerprint ridge counts were typical of the syndrome. Primary hypogonadism was documented by finding low serum testosterone and raised serum LH and FSH levels. Several radiological abnormalities, not previously described in this syndrome, were seen in 1 patient.

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