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Fertility and Sterility|January 1, 1988
Isofluorane inhibits early mouse embryo development in vitroR J Chetkowski, T E NassFertility and Sterility|August 1, 1989
Improved pregnancy outcome with the addition of leuprolide acetate to gonadotropins for in vitro fertilizationR J Chetkowski, L R Kruse, T E NassFertility and Sterility|December 1, 1991
The effect of pituitary suppression and the women's age on embryo viability and uterine receptivityR J Chetkowski, R A Rode, V Burruel, et al.Journal of in Vitro Fertilization and Embryo Transfer : IVF|December 1, 1985
Optimization of hydrogen-ion concentration during aspiration of oocytes and culture and transfer of embryosR J Chetkowski, T E Nass, D W Matt, et al.Fertility and Sterility|March 13, 1998
Secondary donation of frozen embryos is more common after pregnancy initiation with donated eggs than after in vitro fertilization-embryo transfer and gamete intrafallopian transferB Sehnert, R J ChetkowskiFertility and Sterility|November 1, 1996
Donation of frozen embryos after in vitro fertilization is uncommonC V Hounshell, R J ChetkowskiFertility and Sterility|August 1, 1997
In premature luteinization, progesterone induces secretory transformation of the endometrium without impairment of embryo viabilityR J Chetkowski, R J Kiltz, W R SalyerFertility and Sterility|November 1, 1984
Transvaginal ultrasound scanning of ovarian folliclesD R Meldrum, R J Chetkowski, K A Steingold, et al.Biology of Reproduction|March 1, 1985
Proestrous hormonal changes preceding the onset of ovulatory failure in lightly androgenized female ratsR J Handa, T E Nass, R A GorskiThe Journal of Clinical Endocrinology and Metabolism|April 1, 1984
The incidence of late-onset congenital adrenal hyperplasia due to 21-hydroxylase deficiency among hirsute womenR J Chetkowski, J DeFazio, I Shamonki, et al.Pageof 3