1. University Diego Portales, Program of Ethics and Public Policies in Human Reproduction; Clinica las Condes, Unit of Reproductive Medicine, Santiago, Chile
2. ICMART, Palo Alto Medical Foundation Fertility Physicians of Northern California, Palo Alto, CA, USA
3. Department of Obstetrics & Gynecology, Groote Schuur Hospital and Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
4. Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
5. INSERM, EIM-ESHRE, ICMART, 15 rue Guilleminot, 75014 Paris, France
6. Department of Medicine and Obstetrics and Gynecology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90007, USA
7. GENERA Center for Reproductive Medicine, Valle Giulia Clinic, 00197 Rome, Italy
8. Department of Obstetrics and Gynecology, St. Olav's University Hospital, Trondheim, Norway
9. Institute of Public Health, University of Copenhagen, Copenhagen, Denmark
10. Academic Unit of Reproductive and Developmental Medicine, Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
11. March of Dimes Foundation, White Plains, NY, USA
12. The Population Council, The Rockefeller University, New York, NY 10065, USA