1 Acute Cardiovascular Care Unit (Martínez-Losas, Fernández-Jiménez), Hospital Universitario Clinico San Carlos, Madrid, Spain; Translational Laboratory for Cardiovascular Imaging and Therapies (Fernández-Jiménez), Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain.
2 Acute Cardiovascular Care Unit (Martínez-Losas, Fernández-Jiménez), Hospital Universitario Clinico San Carlos, Madrid, Spain; Translational Laboratory for Cardiovascular Imaging and Therapies (Fernández-Jiménez), Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain rfernandez@cnic.es.