1. Department of Obstetrics and Gynecology, Wayne State University School of Medicine; Detroit Michigan USA
2. Department of Medical Genetics, Wayne State University School of Medicine; Detroit Michigan USA
3. Department of Physiology; Wayne State University School of Medicine; Detroit Michigan USA
4. Department of Obstetrics and Gynecology; King Abdul-Aziz University; Jeddah Saudi Arabia
5. Department of Obstetrics and Gynecology; Maimonides Medical Center; Brooklyn New York USA