1. Ludwig Boltzmann Institute for Cardiovascular Research at the Center for Biomedical Research, Medical University of Vienna , Vienna, Austria
2. Institute of Physiology, Center for Physiology and Pharmacology, Medical University of Vienna , Vienna, Austria
3. Cardiac Surgical Research, The Rayne Institute (King’s College London), Guy’s and St Thomas’ NHS Foundation Trust, St Thomas’ Hospital , London, UK
4. Division of Physiological Chemistry, Otto Loewi Research Center, Medical University of Graz , Graz, Austria
5. Department of Cardiac Surgery, University Hospital of Basel , Basel, Switzerland