[1] Inst Heart Sci ICICOR, Valladolid, Spain
[2] Univ Hosp Reina Sofia, Cordoba, Spain
[3] Univ Hosp Virgen de la Victoria, Malaga, Spain
[4] Hosp Clin San Carlos, Cardiol, Madrid, Spain
[5] Univ Hosp Gregorio Maranon, Madrid, Spain
[6] Univ Hosp Marques de Valdecilla, Cardiol, Santander, Spain
[7] Donostia Univ Hosp, San Sebastian, Spain
[8] Univ Hosp Vall dHebron, Barcelona, Spain
[9] Univ Hosp La Paz, Madrid, Spain