1. Department of Radiology, San Gerardo Hospital, Monza, Italy
2. Center of Biostatistics for Clinical Epidemiology, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
3. Medizinische Klinik 2, Caritas-Krankenhaus Bad Mergentheim, Germany
4. Depart of Internal Medicine, Ospedale “M.O.A Locatelli” Piario (BG), Italy
5. Division of Image-Guided Therapy and Interventional Oncology, Department of Radiology, Hadassah Hebrew University Medical Centre, Jerusalem, Israel