1. Cardiology Department University Clinic Hospital Valladolid Spain
2. Cardiology Department University Hospital of León León Spain
3. Cardiology Department Clinic Hospital de Tenerife Santa Cruz de Tenerife Spain
4. Cardiology Department Clinic Hospital of Barcelona Barcelona Spain
5. Cardiology Department Hospital Alvaro Cunqueiro Vigo Spain
6. Cardiology Department University Hospital Central of Asturias Oviedo Spain
7. Cardiology Department Hospital De Basurto Bilbao Spain
8. Cardiology Department Clinic Hospital La Fe Valencia Spain
9. Cardiology Department Hospital Regional Universitario de Málaga Málaga Spain
10. Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, CIBERCV Madrid Spain