1. The chromosomes in a patient showing both mongolism and Klinefelter syndrome;Ford, C.E.; Jones, K.W.; Miller, O.J.;Lancet,1959
2. Double aneuploidy: the frequency of XXY in males with Down's syndrome;Hecht, F.; Nievaard, J.E.; Duncanson, N.;Am J Hum Genet,1969
3. Gershanik nI. A case of double trisomy in a liveborn infant: 48, XXY, + 13;Mailhes, J.B.; Moore, C.M.;Clin Genet,1977
4. Dentition of a 48, XYY, + 21 male;Townsend, G.;Hum Genet,1982
5. Human chromosomes: structure, behavior, and effects;Therman, E.; Susman, M.,1993