1 Applied Health Research Centre, Li Ka Shing Knowledge Institute of St Michael's Hospital, Department of Medicine and Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada.
2 Jessa Ziekenhuis, Faculty of Medicine and Life Sciences at the Hasselt University, Hasselt, Belgium.
3 Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
4 Erasmus Medical Center, Rotterdam, Netherlands; Academic Medical Center of Amsterdam, Amsterdam, Netherlands.
5 Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland. Electronic address: stephan.windecker@insel.ch.