Survival and pregnancy outcome after ultrarapid freezing of human embryos**Presented at The VI World Congress of In Vitro Fertilization and Alternate Assisted Reproduction, Jerusalem, Israel, April 2 to 7, 1989.

1990 ◽  
Vol 53 (3) ◽  
pp. 469-472 ◽  
Author(s):  
Stephan Gordts ◽  
Patricia Roziers ◽  
Rudi Campo ◽  
Vincenzo Noto
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