1. Leuven Institute for Healthcare Policy, Katholieke Universiteit Leuven, Leuven, Belgium;
2. Department of Cardiology, University Hospitals Leuven, Leuven, Belgium;
3. Department of Cardiology, Antwerp University Hospital, Edegem, Belgium;
4. Department of Cardiology, Ghent University Hospital, Ghent, Belgium;
5. Department of Cardiology, University Hospitals Brussels, Brussels, Belgium;
6. Institute for Healthcare Policy, University of Leuven, Leuven, Belgium;
7. Department of Clinical and Experimental Medicine, Amedeo Avogadro University of Eastern Piedmont, Vercelli, Italy;
8. Department of Quality Management, University Hospitals Leuven, Leuven, Belgium