1. Centre for Reproductive Biology, The Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
2. Advanced Cell Technology, One Innovation Drive, Worcester, MA 01605, USA
3. Institute for Cell Engineering, Johns Hopkins University School of Medicine, 733 North Broadway, Baltimore, MD 21205, USA
4. The Institute for Stem Cell Research, University of Edinburgh, Edinburgh EH9 3JQ, Scotland, UK, Institute for Stem Cell Biology, University of Cambridge, Cambridge CB2 1QT, UK
5. ES Cell International, 11 Biopolis Way, # 05-06 Helios, Singapore 138667
6. Monash Immunology and Stem Cell Laboratories, Monash University, Wellington Road, Clayton, Melbourne, Victoria 3800, Australia
7. Division of Biological Sciences, University of Nottingham, Loughborough, Leicestershire LE12 5RD, UK