1. Department of CardiologyCardiologicum Hamburg Hamburg Germany
2. Advanced Heart Failure and Transplantation CenterUniversity Medical Centre Ljubljana Ljubljana Slovenia
3. Department of Cardiology and Regenerative Medicine CenterUniversity Medical Center Utrecht Utrecht The Netherlands
4. Department of Cardiology and Structural Heart DiseasesMedical University of Silesia Katowice Poland
5. Department of CardiologyMedical University of Vienna Vienna Austria
6. Department of Cardiology and Cardiology Stem Cell CentreRigshospitalet University of Copenhagen Copenhagen Denmark
7. Department of CardiologyAsklepios Klinik St. Georg Hamburg Germany
8. Faculty of Social Sciences and the Faculty of Health SciencesUniversity of Copenhagen Copenhagen Denmark