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Blacker CM, Ginsburg KA, Leach RE, Randolph J, Moghissi KS.Blacker CM, et al. Among authors: leach re.Fertil Steril. 1997 Mar;67(3):437-42. doi: 10.1016/s0015-0282(97)80066-0.Fertil Steril. 1997.PMID: 9091327Free article.