1. Department of Cardiology, Thorax Center Erasmus MC, University Medical Center Rotterdam Dr. Molewaterplein 40 Rotterdam 3015GD The Netherlands
2. Department of Cardiology Hospital Group Twente Almelo and Hengelo The Netherlands
3. Department of Cardiology Streekziekenhuis Koningin Beatrix Winterswijk The Netherlands
4. Department of Cardiology VieCuri Medisch Centrum Venlo The Netherlands
5. Department of Cardiology Zuyderland Medisch Centrum Heerlen The Netherlands
6. Department of Cardiology Gelre Ziekenhuizen Zutphen The Netherlands
7. Department of Cardiology Flevoziekenhuis Almere The Netherlands
8. Department of Cardiology University Medical Center Utrecht and Utrecht University Utrecht The Netherlands
9. Department of Cardiology Maastricht University Medical Center Maastricht The Netherlands