1. Spermatozoa with chromosomal abnormalities may result in a higher rate of recurrent abortion 
Claudio Giorlandino, M.D., Graziella Calugi, Ph.D., Laura Iaconianni, M.D., M.Luisa Santoro, Ph.D., Assunta Lippa, M.D. 
Fertility and Sterility 
Volume 70, Issue 3, Pages (September 1998)
DOI: /S (98)

2. Figure 1
Sperm aneuploidy detected by FISH. (A), Sperm before treatment. There were high percentages of polysomic and diploid cells, whereas the percentage of nullisomic sperm was within normal limits. (B), Sperm after Percoll capacitation. The situation was reversed, with low numbers of polysomic and diploid sperm and definite selection of the nullisomic populations.
Fertility and Sterility  , DOI: ( /S (98) )