9Makinq T. Chromosomal analysis in Japanese couples with repeated spontaneous snprtions. Int J Fertil, 1990, 35:266.
10Daniely M, Aviram A, Carp HJ, et al. The association between sporadic somatic parenta aneuploidy and chromosornally abnormal placentae habitual aborlions . Early Pregnancy 2001, 5(3) : 153.