1 Centro de investigación biomédica en red - Enfermedades Cardiovasculares (CIBERCV), Instituto de Saludo Carlos III, Madrid, Spain; Cardiology Department, University Clinic Hospital of Valladolid, Valladolid, Spain. Electronic address: ijamat@gmail.com.
2 Cardiology Department, University Clinic Hospital of Valladolid, Valladolid, Spain.
3 Cardiology Department, Central University Hospital of Asturias, Oviedo, Spain; Health Research Institute of Asturias, ISPA, Oviedo, Spain; University of Oviedo, Spain.