1. Department of Physiology, Institute of Physiology, Charité-Universitätsmedizin Berlin, Corporate Member of the Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
2. German Center for Cardiovascular Research (DZHK), Berlin, Germany
3. Department of Physiology, Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada
4. Institute of Neurophysiology, Charité-Universitätsmedizin Berlin, Corporate Member of the Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
5. Department of Molecular Physiology and Biophysics, University of Virginia School of Medicine, Charlottesville, VA, USA
6. Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, USA
7. Departments of Physiology and Surgery, University of Toronto, ON, Canada