1. Jacobs PA, Browne C, Gregson N, Joyce C, White H. Estimates of the frequency of chromosome abnormalities detectable in unselected newborns using moderate levels of banding. J Med Genet. 1992;29:103–8.
2. Hassold TJ, Takaesu N. Analysis of non-disjunction in human trisomic spontaneous abortions. In: Hassold TJ, Epstein CJ, editors. Molecular and cytogenetic studies of non-disjunction. New York: Alan R. Liss Inc.; 1989. p. 115–34.
3. Oxford monographs on medical genetics no. 21;D Warburton,1991
4. Jacobs PA, Hassold TJ, Henry A, Pettay D, Takaesu N. Trisomy 13 ascertained in a survey of spontaneous abortions. J Med Genet. 1987;24:721–4.
5. Martin RH, Ko E, Rademaker A. Distribution of Aneuploidy in human gametes: comparison between human sperm and oöcytes. Am J Med Genet. 1991;39:321–31.