1. Department of Cardiology, CIBERCV. University Alcala de Henares, Hospital Ramon y Cajal, Carretera de Colmenar Km 9.100, Madrid, Spain
2. Cardiology Department, Hospital Universitario Vall d'Hebron, Passeig de la Vall d'Hebron, Barcelona, Spain
3. Cardiology Department, Hospital Universitario Infanta Cristina, Avenida de Elvas s/n, Badajoz, Spain
4. Cardiology Department, Hospital Clinic de Barcelona, Carrer de Villarroel 170, Barcelona, Spain
5. Cardiology Department, Hospital Universitario Virgen del Rocío, Avenida Manuel Siurot s/n, Sevilla, Spain
6. Cardiology Department, Hospital Universitario Virgen de la Victoria, Málaga, Spain
7. Cardiology Department, Hospital Universitario Donostia, Beguiristain doktorea pasealeua s/n, San Sebastián, Spain
8. Cardiology Department, Hospital Universitario A Coruña, As Xubias 84, A Coruña, Spain
9. Cardiology Department, Hospital Universitario Son Espases, Car de Valldemossa 79, Palma De Mallorca, Spain
10. Cardiology Department, Hospital Universitario Reina Sofía, Avenida Menéndez Pidal s/n, Córdoba, Spain
11. Cardiology Department Hospital Universitario Central de Asturias, Avenida de Roma s/n, Oviedo, Spain