1. Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand 10330.
2. Vincent Center for Reproductive Biology, Vincent Obstetrics and Gynecology Service, Massachusetts General Hospital/Harvard Medical School, Boston, MA 02114, USA.
3. Science, Technology and Globalization Project/Science, Technology and Public Policy Program, Belfer Center for Science and International Affairs, John F. Kennedy School of Government, Harvard University, Cambridge, MA 02138, USA.
4. RIKEN Center for Developmental Biology, Kobe, 650-0047, Japan.
5. Center for iPS Research and Application, Institute for Integrated Cell-Materials Sciences, Kyoto University, Kyoto, 606-8501, Japan.