Affiliation: | 1. Cardiology Department, Bellvitge University Hospital, Barcelona, Spain;2. Cardiology Department, Hospital Clínico San Carlos, Madrid, Spain;3. Cardiology Department, Hospital Miguel Servet, Zaragoza, Spain;4. Cardiology Department, Hospital Universitario Santiago de Compostela, Santiago de Compostela, Spain;5. Cardiology Department, Hospital Puerta del Hierro, Majadahonda, Madrid, Spain |