1. Department of Cardiology, University Hospitals Leuven, Leuven, Belgium;
2. Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium;
3. Department of Cardiology, St. Antonius Ziekenhuis Nieuwegein, Nieuwegein, The Netherlands;
4. Department of Cardiology, Erasmus MC, Rotterdam, The Netherlands