1. Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA.
2. Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201, USA.
3. Department of Clinical Chemistry, VU University Medical Center, Amsterdam, Netherlands.
4. Safe and Sound for Women, 3131 La Canada Street, Las Vegas, NV 89169, USA.
5. Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI 48201, USA.
6. Program in Reproductive and Adult Endocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.