1. Cardiology Stem Cell Center, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.
2. Regenerative Medicine and Stem Cell Research Center, the Avram and Stella Goldstein-Goren Department of Biotechnology and Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel.
3. Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark.