1. Cardiology Stem Cell Centre, the Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
2. Department of Clinical Physiology, Nuclear Imaging & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
3. Regenerative Medicine and Stem Cell Research Center and Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel