1. Duke Clinical Research Institute, Duke Health, Durham, North Carolina
2. Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden
3. Division of Clinical Electrophysiology, Goethe University, Frankfurt, Germany
4. Division of Cardiology, University of Alberta, Edmonton, Alberta, Canada
5. Department of Cardiology, Oslo University Hospital and University of Oslo, Oslo, Norway
6. Bristol-Myers Squibb, Princeton, New Jersey
7. Department of Medicine, University of Cape Town, Cape Town, South Africa
8. Institute of Cardiology, Warsaw, Poland
9. Third Department of Medicine, Cardiology and Emergency Medicine, Wilhelminenspital, Vienna, Austria