1. Normal birth after single-embryo transfer in a patient with excessive polypronuclear zygote formation following in vitro fertilization and intracytoplasmic sperm injection 
Dennis W. Matt, Ph.D., Amy R. Ingram, B.S., Daniel P. Graff, B.S., Michael C. Edelstein, M.D. 
Fertility and Sterility 
Volume 82, Issue 6, Pages (December 2004)
DOI: /j.fertnstert
Copyright © 2004 American Society for Reproductive Medicine Terms and Conditions

2. FIGURE 1
(A) Polypronuclear zygote observed 16 hours after ICSI. (B) Day-3 (63-hour) preembryo which was the only zygote with two pronuclei following ICSI. This single, poor-quality four-cell embryo with considerable fragmentation (grade 2; scale 1 to 5; 5 is the best quality) was transferred and resulted in a normal healthy baby girl.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2004 American Society for Reproductive Medicine Terms and Conditions