1. University of Bern, Institute of Biochemistry and Molecular Medicine, and National Center of Competence in Research, NCCR TransCure, Bühlstrasse 28, 3012 Bern, Switzerland
2. University of Bern, Department of Physiology, Buehlplatz 5, 3012 Bern, Switzerland
3. Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, Rochester, Minnesota 55905, United States