1 Translational Cardiology, Department of Cardiology, Inselspital, University Hospital Bern, University of Bern, Bern, Switzerland.
2 Department of Physiology, University of Bern, Bern, Switzerland.
3 Translational Cardiology, Department of Cardiology, Inselspital, University Hospital Bern, University of Bern, Bern, Switzerland; Department of Physiology, University of Bern, Bern, Switzerland. Electronic address: katja.odening@insel.ch.