1. Electrophysiology and Cardiac Arrhythmias Department Instituto Dante Pazzanese de Cardiologia São Paulo Brazil
2. Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin Universitätsklinikum des Saarlandes Saarland University Saarbrücken Germany
3. Duke Clinical Research Institute Duke University Medical Center Durham North Carolina USA
4. HCor Research Institute Hospital do Coração (HCor) São Paulo Brazil