1. Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organization, Goettingen, Germany
2. Institute for the Dynamics of Complex Systems, Goettingen University, Goettingen, Germany
3. German Center for Cardiovascular Research, Partner Site Goettingen, Goettingen, Germany
4. University Medical Center Goettingen, Clinic of Cardiology and Pneumology, Goettingen, Germany
5. European Laboratory for Non-Linear Spectroscopy, Sesto Fiorentino (FI), Italy
6. Division of Physiology, Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
7. Department of Physiology, MGill University, Montreal, Canada
8. Institute for Experimental Cardiovascular Medicine, University of Freiburg, Freiburg, Germany
9. National Institute of Optics, National Research Council, Florence, Italy
10. INPHYNI, CNRS, Sophia Antipolis, Paris, France
11. University Medical Center Goettingen, Institute of Pharmacology and Toxicology, Goettingen, Germany