1. Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires St. Luc, Avenue Hippocrate 10, 1200 Woluwé-Saint-Lambert, St Luc, Brussels, Belgium
2. Department of Cardiology, Centrum voor Hart-en Vaatziekten (CHVZ), UZ Brussel, Laarbeeklaan 101, 1090 Jette, Belgium