1. Department of Medicine, Kingston General Hospital; Queen's University; Kingston Ontario Canada
2. Department of Cardiology and Internal Medicine; Specialistic Hospital; Gorlice Poland
3. Department of Cardiology, Taihe Hospital; Hubei University of Medicine; Shiyan City China
4. Clinical Unit of Electrocardiography, Heart Institute (InCor), Clinic Hospital, Faculty of Medicine, Sao Paulo University; Sao Paulo; Brazil
5. Telecardiology Center; Institute of Cardiology; Warsaw Poland
6. Iberoamerican Forum of Arrhythmias in the Internet, (FIAI), Buenos Aires; Argentina
7. The Heart Research Follow-up Program, Cardiology Unit; University of Rochester Medical Center; Rochester NY
8. ICCC-Hospital Sant Pau; Barcelona Catalunya Spain
9. Department of Internal Medicine and Cardiology; Medical University of Warsaw; Warszawa Poland