1. Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
2. Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia
3. Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, The Netherlands
4. Institute of Pharmacology, West German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany
5. Department of Medicine, Montreal Heart Institute and Université de Montréal, Montréal, Québec, Canada
6. Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, Tx, USA
7. Department of Cardiology, Radboud University Medical Centre, Nijmegen, The Netherlands