AKNOWLEDGMENTS
The administrative, medical and paramedical staff of all the centers involved in the cardiovascular Hub-spoke network [H Fondazione Poliambulanza, Brescia ; H Carlo Poma, Mantova; H Riuniti Civili, Brescia; H. Humanitas Gavazzeni, Bergamo (BG); H Papa Giovanni XXIII, Bergamo (BG); H Policlinico S Marco, Zingonia (BG); H S. Anna, Brescia (BS); H Mellino Mellini, Chiari (BS); H Manerbio, Manerbio (BS); H Cremona, Cremona (CR); H Maggiore, Crema (CR)]