1. Multinucleation in normally fertilized embryos is associated with an accelerated ovulation induction response and lower implantation and pregnancy rates in in vitro fertilization-embryo transfer cycles 
Katharine V Jackson, B.S., Elizabeth S Ginsburg, M.D., Mark D Hornstein, M.D., Mitchell S Rein, M.D., Robert N Clarke, Ph.D. 
Fertility and Sterility 
Volume 70, Issue 1, Pages (July 1998)
DOI: /S (98)

2. Figure 1
Normally fertilized embryos. (A), Multinucleated embryo (embryo in which at least 1 blastomere exhibited >1 nucleus). (B), Control embryo (embryo in which there was no nucleus or 1 nucleus per blastomere).
Fertility and Sterility  , 60-66DOI: ( /S (98) )