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Fertility and Sterility > 1998 > 69 > 5 > 931-935
Fertility and Sterility > 1997 > 68 > 2 > 312-317
Fertility and Sterility > 1997 > 67 > 2 > 302-308
Fertility and Sterility > 1998 > 69 > 5 > 931-935
Fertility and Sterility > 1997 > 68 > 2 > 312-317
Fertility and Sterility > 1997 > 67 > 2 > 302-308