Sources (continued):
Egg, Ovarian Tissue, Embryo, and Sperm Freezing. The Infertility Center of Saint Louis. Accessed September 23, 2008. http://www.infertile.com/infertility-treatments/freeze.htm#vitrification
Lucena E, Bernal DP, Lucena C, Rojas A, Moran A, and Lucena A. "Successful ongoing pregnancies after vitrification of oocytes." Fertility and Sterility. 2006 Jan; 85(1):108-11.
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