1. Department of Cardiology and Pneumology, CBF; Charité-Universitätsmedizin Berlin; Berlin Germany
2. Institute for Cardiac Diagnostics and Therapy; Berlin Germany
3. Institute for Biometry and Clinical Epidemiology; Charité-Universitätsmedizin Berlin; Berlin Germany
4. University Heart Center Hamburg; Hamburg Germany
5. Berlin-Brandenburg Center for Regenerative Therapies (BCRT); Charité-Universitätsmedizin Berlin; Berlin Germany