1. London School of Economics and Political Science, BIOS Centre, Houghton Street, London WC2A 2AE, UK.
2. UK Stem Cell Bank, National Institute for Biological Standards and Control, Potters Bar, UK
3. King’s College, London, UK
4. Department of Obstetrics and Gynecology, Aberdeen, UK
5. Division of Gene Function and Development, Edinburgh, UK
6. Department of Midwifery, Dundee, UK
7. Advanced Centre for Biochemical Engineering, University College, London, UK
8. Department of Women’s Health, London, UK