1 Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy. Electronic address: marco.ferlini@gmail.com.
2 Cardiology Department, University of Milan, ASST Santi Paolo e Carlo, Milano, Italy.
3 Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
4 Department of Clinical Sciences and Community Health, University of Milano and Fondazione Ospedale Maggiore IRCCS Policlinico di Milano, Milano, Italy.
5 IRCCS Centro Cardiologico Monzino, University of Milan, Milano, Italy.
6 Interventional Cardiology Unit, IRCCS San Raffaele, Milano, Italy.