1 Department of Emergency Medicine, Franz Tappeiner Hospital of Merano, Azienda Sanitaria dell'Alto Adige, Merano, Bolzano, Italy. Electronic address: gianni.turcato@yahoo.it.
2 Department of Emergency Medicine, Franz Tappeiner Hospital of Merano, Azienda Sanitaria dell'Alto Adige, Merano, Bolzano, Italy.
3 Department of Cardiology and Intensive Care Cardiology, Girolamo Fracastoro Hospital of San Bonifacio, Azienda Ospedaliera Scaligera, San Bonifacio, Verona, Italy.
4 Department of Emergency Medicine, University of Verona, Verona, Italy.