1. Department of Cardiology; University Hospital Principe de Asturias, and Department of Medicine, University of Alcalá; Alcalá de Henares Spain
2. Department of Cardiology University Hospital Ramón y Cajal; Madrid Spain
3. Department of Radiology University Hospital Príncipe de Asturias; Alcalá de Henares Spain
4. GAI-Guadalajara, SESCAM; Guadalajara Spain