1. Division of Infertility and Reproductive Endocrinology (B.B., L.P., R.Z.S.), Department of Gynecology, Obstetrics, and Gynecological Oncology, Poznan University of Medical Sciences, 60-535 Poznan, Poland
2. Division of Reproductive Endocrinology and Infertility (A.J.D.), Department of Ob/Gyn, University of California Davis, Sacramento, California 95817