1. Regenerative Immunology and Aging, Berlin-Brandenburg Center for Regenerative Therapies, Charité University Medicine, Berlin, Germany.
2. Stem Cell Research and Knowledge Management, Berlin-Brandenburg Center for Regenerative Therapies, Charité University Medicine, Berlin, Germany.
3. College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea.
4. Plastic Surgery, Berlin, Germany.
5. Cell Biology, German Rheumatism Research Center, Berlin, Germany.