1. Department of Cardiovascular Sciences, Catholic University Leuven, Herestraat 49, 3000 Leuven, Belgium
2. Department of Cardiovascular Diseases, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
3. Department of Cardiology, Oslo University Hospital and University of Oslo, Postboks 4950 Nydalen, 0424 Oslo, Norway
4. Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, IRCCS, San Luca Hospital, Piazzale Brescia 20, 20149 Milano, Italy
5. Department of Medicine and Surgery, University of Milano-Bicocca, Milano, Italy