1. Cardiology Department, Heart Disease Institute, Bellvitge Biomedical Research Institute IDIBELL; Bellvitge University Hospital; Barcelona Spain
2. Cardiology Department; Hospital Universitario Araba; Vitoria Spain
3. Cardiology Department, Hospital Universitario de Canarias; Santa Cruz de Tenerife; Spain
4. Cardiology Department; Hospital Vírgen de la Victoria; Málaga Spain
5. Cardiology Department; Hospital Clínico San Carlos; Madrid Spain
6. Cardiology Department; Hospital Universitario Donostia; San Sebastian Spain
7. Cardiology Department; Hospital Santa Creu i Sant Pau; Barcelona Spain
8. Cardiology Department; Hospital 12 de Octubre; Madrid Spain
9. Cardiology Department; Hospital Universitario Puerta de Hierro; Majadahonda Spain
10. Cardiology Department; Hospital Universitario Vírgen de la Arrixaca; Murcia Spain