title: A MENTALLY DEFECTIVE MALE WITH KLINEFELTER'S SYNDROME AND PROBABLE XXYY/XXY MOSAICISM.
mesh_terms: D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D006801:Humans; D008607:Intellectual Disability; D007713:Klinefelter Syndrome; D007962:Leukocytes; D008297:Male; D009030:Mosaicism; D010336:Pathology; D013736:Testicular Neoplasms
keywords: CHROMOSOME ABNORMALITIES; KLINEFELTER'S SYNDROME; LEUKOCYTES; MENTAL RETARDATION; MOSAICISM; PATHOLOGY; TESTICULAR NEOPLASMS