1. Division of Clinical Physiology, Department of Cardiology, Faculty of MedicineUniversity of Debrecen Debrecen Hungary
2. HAS‐UD Vascular Biology and Myocardial Pathophysiology Research GroupHungarian Academy of Sciences Debrecen Hungary
3. Heart and Vascular CenterSemmelweis University Budapest Hungary
4. Department of Physiology, Amsterdam Cardiovascular SciencesVU University Medical Center Amsterdam The Netherlands
5. Department of Cardiovascular PhysiologyRuhr University Bochum Bochum Germany
6. Department of CardiologyUniversity of Belgrade Belgrade Serbia