1. Human cytogenetics. vol 1;Hamerton, J.L.,1971
2. A case of double trisomy in a liveborn infant: 48, XXY,+13;Mailhes, J.B.; Moore, C.M.; Gershanik, J.J.;Clin Genet,1977
3. 18 double trisomy. JMed Genet;Madahar, D.P.; Dosik, H.; Wexler, I.,1974
4. Klinefelter's syndrome and trisomy 18 in a newborn boy;Nielsen, J.; M, Vetner; S, Holm; AA, Askjaer; E, ReskeNielsen; J, Zizken;Clin Genet,1978
5. Double aneuploidy. Trisomy 18 and Klinefelter's syndrome;Cohen, M.M.; Bumbalo, T.S.;Am J Dis Child,1967