1. Jazmin Primary Care Health Center, East Area Primary Care, Madrid, Spain;
2. Cardiology Department, University Hospital Ramon y Cajal, Madrid, Spain;
3. Primary Care Health Center Casar de Cáceres, Cáceres, Spain;
4. Cardiology Department, University Hospital La Paz, Madrid, Spain;
5. High Resolution Hospitalization Unit, Hospital el Toyo, Hospital de Poniente El Ejido, Almeria, Spain;
6. Medical Department, Bayer Hispania, Barcelona, Spain;
7. Medical Biostatistics, Universidad Católica San Antonio de Murcia, Murcia, Spain;
8. Primary Care Health Center, Barcelona, Spain;
9. Vallobín-La Florida Primary Care Health Center, Oviedo, Spain;
10. Medicine Preventive Department, Oviedo University, Asturias, Spain;
11. Unit of Clinical Research La Alamedilla, Salamanca, Spain