1. Department of Radiology; San Giovanni-Addolorata Hospital; Rome Italy
2. Department of Radiology; Oncology and Pathology; Sapienza University of Rome - Polo Pontino-Latina; Italy
3. Italy Department of Radiology; Niguarda Hospital; Milan Italy
4. Department of Radiology; United Hospital; Brescia Italy
5. Department of Radiology; Santa Maria Hospital; Treviso Italy
6. Department of Radiology; Santa Maria delle Grazie Hospital; Pozzuoli Italy
7. Department of Biomedical; Experimental and Clinical Sciences; Radiodiagnostics Unit No. 2; University of Florence, Azienda Ospedaliero-Universitaria Careggi; Florence Italy