[1] Responsible Res Hosp, Radiat Oncol Dept, Campobasso, Italy
[2] Responsible Res Hosp, Med Phys Dept, Campobasso, Italy
[3] IRCCS Azienda Osped Univ Bologna, Radiotherapy, Bologna, Italy
[4] Alma Mater Studiorum Bologna Univ, Dept Med & Surg Sci DIMEC, Bologna, Italy
[5] Univ Cattolica Sacro Cuore, Ist Radiol, Rome, Italy