1. Department of Cardiology, Maastricht University Medical Center and Cardiovascular Research Institute Maastricht , Universiteitssingel 50, 6229 HX Maastricht , The Netherlands
2. Institute of Pharmacology, West German Heart and Vascular Center, University Duisburg-Essen , 45147 Essen , Germany
3. 1st Department of Cardiology, Medical University of Warsaw , 02-197 Warsaw , Poland
4. Department of Cardiology, Radboud University Medical Center , 6525 GA Nijmegen , The Netherlands
5. Hannover Heart Rhythm Center, Department of Cardiology and Angiology, Hannover Medical School , D-30625 Hannover , Germany
6. Department of Cardiology, University Clinic of Medicine, Medical University of Graz , 8036 Graz , Austria
7. Department of Electrophysiology, University of Cologne, Heart Center , 50937 Cologne , Germany
8. Department of Cardiology, Rijnstate Hospital , 6815 AD Arnhem , The Netherlands
9. Department of Cardiology, Liverpool Heart and Chest Hospital , L14 3PE Liverpool , United Kingdom
10. Department of Cardiology and Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel , 4031 Basel , Switzerland
11. Department of Cardiology, Hospital East-Limburg , 3600 Genk , Belgium
12. Department of Cardiovascular Sciences, University Hospitals Leuven , 3000 Leuven , Belgium
13. Cardiology Department, Antwerp University Hospital and Antwerp University , 2650 Antwerp , Belgium
14. Faculty of Medicine and Life Sciences, Hasselt University and Jessa Hospital , 3500 Hasselt , Belgium
15. Qompium NV , 3500 Hasselt , Belgium
16. Deptartment of Cardiology, Karolinska University Hospital , 171 77 Stockholm , Sweden
17. Cardiovascular Center, Onze Lieve Vrouwziekenhuis , 9300 Aalst , Belgium
18. Barts Heart Center, St Bartholomew's Hospital , EC1A 7BE London , United Kingdom
19. Department of Cardiology, King George Hospital , IG3 8YB Ilford , United Kingdom
20. Center for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital , SA 5000 Adelaide , Australia
21. Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen , 2200 Copenhagen , Denmark
22. Caring Futures Institute, College of Nursing and Health Sciences, Flinders University , SA 5042 Adelaide , Australia