1. Department of Cardiology and AngiologyHannover Medical School Hannover Germany
2. Department of CardiologyParacelsus Medical University, General Hospital Nuremberg Nuremberg Germany
3. Department of Cardiology, Pulmonology, and Vascular MedicineUniversity of Cologne, Faculty of Medicine and University Hospital Cologne Cologne Germany
4. Department of Cardiology, Charité UniversitätsmedizinCampus Benjamin Franklin Berlin Germany
5. Institute of Transplant ImmunologyHannover Medical School Hannover Germany