1. Cardiology Department, Hospital Ramón y Cajal, Madrid, Spain
2. Cardiology Department, Hospital Virgen Macarena, Sevilla, Spain
3. Cardiology Department, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
4. Cardiology Department, Hospital Sant Pau, Barcelona, Spain
5. Cardiology Department, Hospital Clinico Universitario de Santiago de Compostela. CIBERCV, Spain
6. Internal Medicine Department, Atrial fibrillation Unit UFA Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
7. Internal Medicine Department, Hospital Vega Baja, Alicante, Spain
8. Internal Medicine Department, Hospital Universitario, Granada, Spain
9. Internal Medicine Department, Complexo Hospitalario Universitario de Santiago, Santiago, Spain
10. Internal Medicine Department, Hospital Universitario de la Princesa, Madrid, Spain