1. INSERM U822, Hôpital de Bicêtre, 82 rue du Général Leclerc, 94276 Le Kremlin Bicêtre Cedex, Paris, France
2. Australian Health Policy Institute, School of Public Health, University of Sydney, Sydney, Australia
3. IVF Unit, Sophiahemmet Hospital, Stockholm, Sweden
4. Perinatal and Reproductive Epidemiology and Research Unit, School Women's and Children's Health, University of New South Wales, Sydney, Australia
5. Unit of Reproductive Medicine, Clinicas las Condes, Santiago, Chile
6. 3 Rd 161, Maadi, Cairo 11431, Egypt
7. Saitama Medical University Hospital, Moroyama, Saitana 350-0495, Japan
8. Fertility Physicians of Northern California, Palo Alto and San Jose, CA, USA