XYY sex chromosomes in a Jamaican with orthopaedic abnormalities.
D000328:Adult; D000368:Aged; D006801:Humans; D007006:Hypogonadism / Q000235:genetics; D008607:Intellectual Disability / Q000235:genetics; D007866:Leg / Q000002:abnormalities*; D008297:Male; D008875:Middle Aged; D012729:Sex Chromosome Aberrations; D014647:Varicose Ulcer / Q000235:genetics