1. Department of Cardiology, Maastricht University Medical Center and Cardiovascular Research Institute Maastricht, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands
2. Institute of Pharmacology, West German Heart and Vascular Centre, University Duisburg-Essen, Hufelandstraße 55, Essen 45147, Germany
3. 1st Department of Cardiology, Medical University of Warsaw, Banacha 1A, 02-197 Warsaw, Poland
4. Department of Cardiology, Radboud University Medical Center and Radboud Institute for Health Sciences, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands
5. Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, 1 Port Road, SA 5000 Adelaide, Australia
6. Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Sturt North Sturt Rd, Bedford Park SA 5042, Adelaide, Australia
7. Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark