Transfer and uterine factors are the major recipient-related determinants of success with donor eggs von Zenke, Ulrike, Chetkowski, Ryszard J.

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Salpingectomy or proximal tubal occlusion of unilateral hydrosalpinx increases the potential for spontaneous pregnancy von Sagoskin, Arthur W., Lessey, Bruce A., Mottla, Gilbert L., Richter, Kevin S., Chetkowski, Ryszard J., Chang, AnneLynn S., Levy, Michael J., Stillman, Robert J.

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Inclusion of heterozygotes for cystic fibrosis in the egg donor pool von Zenke, Ulrike, Chetkowski, Ryszard J

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In premature luteinization, progesterone induces secretory transformation of the endometrium without impairment of embryo viability von Chetkowski, Ryszard J., Kiltz, Robert J., Salyer, William R.

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Detecting differences in endometrial maturation? von Lessey, Bruce A., Chetkowski, Ryszard J.

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Biologic Effects of Transdermal Estradiol von Chetkowski, Ryszard J, Meldrum, David R, Steingold, Kenneth A, Randle, Denise, Lu, John K, Eggena, Peter, Hershman, Jerome M, Alkjaersig, Norma K, Fletcher, Anthony P, Judd, Howard L

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Secondary donation of frozen embryos is more common after pregnancy initiation with donated eggs than after in vitro fertilization-embryo transfer and gamete intrafallopian transfe... von Sehnert, Bette, Chetkowski, Ryszard J

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Donation of frozen embryos after in vitro fertilization is uncommon von Hounshell, Catherine V., Chetkowski, Ryszard J.

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"Ideas whose times have not come"? von Chetkowski, R J

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Origin of Serum Progestins in Polycystic Ovarian Disease von CHETKOWSKI, RYSZARD J, CHANG, R JEFFREY, DeFAZIO, JOHN, MELDRUM, DAVID R, JUDD, HOWARD L

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The effect of pituitary suppression and the women’s age on embryo viability and uterine receptivity von Chetkowski, Ryszard J., Rode, Richard A., Burruel, Victoria, Nass, Thomas E.

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The effect of pituitary suppression and the women's age on embryo viability and uterine receptivity von Chetkowski, RJ, Rode, RA, Burruel, V, Nass, TE

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Biologic effects of transdermal estradiol von Chetkowski, RJ, Meldrum, DR, Steingold, KA

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