1. CellNet Initiative, Berlin–Brandenburg Center for Regenerative Therapies (BCRT), Charité – Universitätsmedizin Campus Virchow-Klinikum, BCRT, Augustenburger Platz 1, D-13353 Berlin, Germany.
2. Cell Therapy Group, Berlin–Brandenburg Center for Regenerative Therapies, Berlin, Germany
3. The UK Stem Cell Bank, South Mimms, UK
4. Center of Regenerative Medicine, Barcelona, Spain
5. Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
6. Institut Universitari Dexeus, Barcelona, Spain