1 UOC Cardiologia, Fondazione IRCCS Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Italy. Electronic address: federico.lombardi@unimi.it.
2 UOC Cardiologia, Fondazione IRCCS Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Italy.
3 National Heart and Lung Institute, Imperial College, London, England, UK.