1. Department of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics , Iowa City, IA, USA
2. Department of Obstetrics and Gynecology, University of California Irvine , Orange, CA, USA
3. HCA Medical City Plano , Plano, TX, USA
4. Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University Hospitals Cleveland Medical Center , Cleveland, OH, USA
5. Indiana University Maurer School of Law , Bloomington, IN, USA
6. Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Tennessee , Knoxville, TN, USA
7. National Embryo Donation Center , Knoxville, TN, USA
8. Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, University of Texas Health Science Center at Houston , Brownsville, TX, USA
9. Seattle Reproductive Medicine , Seattle, WA, USA
10. Department of Philosophy and Moral Science, Ghent University , Ghent, Belgium
11. Embryo Donation International , Fort Myers, FL, USA
12. Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University , Chicago, IL, USA
13. Department of Obstetrics and Gynecology, Boonshoft School of Medicine, Wright State University , Fairborn, OH, USA
14. Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai, China
15. Baylor Scott & White Department of Obstetrics & Gynecology , Temple, TX, USA