Affiliation: | a Hospital Universitario de Canarias, Department of Cardiology, Tenerife, Spainb Universidad de La Laguna, Department of Physiology, Tenerife, Spainc Hospital Universitario Central de Asturias, Department of Cardiology, Oviedo, Spaind Hospital Universitario de Canarias, Department of Nuclear Medicine, Tenerife, Spaine Cardiovascular Sciences Research Centre, St George's University of London, United Kingdom |