1. 1st Department of Medicine ‐ Cardiology University Medical Centre Mannheim, Germany; Partner Site Heidelberg/Mannheim, German Center for Cardiovascular Research (DZHK) Mannheim Germany
2. Herzzentrum Bad Bevensen Bad Bevensen Germany
3. Elbe Klinikum Stade, Klinik für Innere Medizin, Kardiologie und Intensivmedizin Stade Germany
4. Impulse Dynamics, Inc Marlton NJ USA
5. Cardiovascular Research Foundation New York NY USA