3Haylock J,Fitzgerald M,Danks D, Dennet X. Two cases of the 18 -trisomy syndrome,one in combination with an XXY karyotype[ J ].Hum Chromos Lett, 1963,9:15.
4Cohen MM, Bumbalo TS. Double aneuploidy: trisomy - 18 andKlinefelter's syndrome[ J ]. Am J Dis Child, 1967,113(4): 483 -486.
5ZellwegerH,Abbo G. Double trisomy and double trisomic mosaicism[J ]. Am J Dis Child,1967,113(3):329 -337.
7Bach C,Toublanc JE,Gautier M. Case of double aneuploidy ; trisomy18 and XXY[J ]. Ann Genet,1973,16( 1):61 -66.
8Nielsen J, Vetner M, Holm V, et al. Klinefelter^ syndrome and tri-somy 18 in a newborn boy[ J ] ? Clin Genet, 1978 ,13(3 ) : 259 - 264.
9Rogers R, Phelan M, Pulliam L, Albies K. Double aneuploidy[ J ].Proc Greenwood Genet Ctr, 1986,5:49 -57.
10van Ravenswaaij - Arts CM, Tuerlings JH, Van Heyst AF, et al.Misinterpretation of trisomy 18 as a pseudomosaicism at third — trimes-ter amniocentesis of a child with a mosaic 46,XY/47,XY,+ 3/48,XXY, +18 karyotype [J ]. Prenat Diagn, 1997,17(4) : 375 -379.