1. Department of Physiology; VU University Medical Centre; Amsterdam The Netherlands
2. Department of Experimental and Clinical Medicine; University of Florence; Florence Italy
3. Institute of Molecular and Cell Physiology; Hannover Medical School; Hannover Germany
4. Department of Physics and Astronomy; VU University; Amsterdam The Netherlands
5. Thorax Centre; Cardiology, Erasmus Medical Centre; Rotterdam The Netherlands
6. Brigham and Women's Hospital; Cardiology Boston USA
7. ICIN-Netherlands Heart Institute; Utrecht The Netherlands