1. Department of Biology, Rhodes College, 2000 North Parkway, Memphis, TN 38112, USA
2. Department of Obstetrics and Gynecology, University of Tennessee Health Science Center, Memphis, TN 38152, USA
3. Department of Internal Medicine, The Vascular Biology Center of Excellence, University of Tennessee Health Science Center, Memphis, TN 38152, USA
4. Fertility Associates of Memphis, 80 Humphreys Center, Suite 307, Memphis, TN 38120, USA