1. Jesselson Integrated Heart Center, Shaare Zedek Medical Center and Hebrew University Faculty of Medicine , Jerusalem , Israel
2. First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College , Jakubowskiego 2, 30-688 Krakow , Poland
3. Virginia Commonwealth University, VCU Medical Center Gateway Building , 1200 E. Marshall Street, Richmond, VA 23219 , USA
4. MUSC Division of Cardiology , Medical University of South Carolina, 25 Courtenay Dr, MS-592, Charleston, SC 29425 , USA
5. Cardiac Pacing Unit, Cardiology Department, University Hospital of Geneva , Rue Gabrielle Perret Gentil 4, 1211, Geneva , Switzerland