1. Department of Radiological Sciences, Oncology and Pathology. “Sapienza” - University of Rome, Diagnostic Imaging Unit - I.C.O.T. Hospital, Latina, Italy
2. Medical Physics Laboratory, Regina Elena National Cancer Institute, Rome, Italy
3. Radiology Unit, Regina Elena National Cancer Institute, Rome, Italy
4. Department of Radiological Sciences, Oncology and Pathology. “Sapienza” - University of Rome, Radiotherapy Unit, Policlinico Umberto I, Rome, Italy