1 Department of Medical Sciences, University of Trieste, Trieste, Italy.
2 Institute of Medicina Clinica, Ospedale di Cattinara, Azienda Sanitaria Universitaria Giuliano-Isontina, Trieste, Italy.
3 Unit of Biostatistics, Epidemiology and Public Health, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, Padova, Italy.
4 Unit of Radiology, Azienda Sanitaria Universitaria Giuliano-Isontina, Trieste, Italy.