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Esfandiari N, Khazaei M, Ai J, Bielecki R, Gotlieb L, Ryan E, Casper RF.Esfandiari N, et al. Among authors: casper rf.Fertil Steril. 2007 Feb;87(2):257-62. doi: 10.1016/j.fertnstert.2006.06.040. Epub 2006 Nov 13.Fertil Steril. 2007.PMID: 17097652Free article.
Fasciani A, Bocci G, Xu J, Bielecki R, Greenblatt E, Leyland N, Casper RF.Fasciani A, et al. Among authors: casper rf.Fertil Steril. 2003 Nov;80(5):1137-43. doi: 10.1016/s0015-0282(03)02164-2.Fertil Steril. 2003.PMID: 14607564Free article.
Fisher SA, Reid RL, Van Vugt DA, Casper RF.Fisher SA, et al. Among authors: casper rf.Fertil Steril. 2002 Aug;78(2):280-5. doi: 10.1016/s0015-0282(02)03241-7.Fertil Steril. 2002.PMID: 12137863Free article.Clinical Trial.