[1] Azienda Osped Univ Marche, Dept Radiotherapy, Ancona, Italy
[2] Pisa Univ, Dept Radiotherapy, Pisa, Italy
[3] SS Annunziata Hosp, Dept Radiat Oncol, Chieti, Italy
[4] Ctr Riferimento Oncol Aviano CRO IRCCS, Div Radiat Oncol, Aviano, Italy
[5] Univ Cattolica Sacro Cuore, Dept Radiat Therapy, Rome, Italy
[6] Univ Perugia, Radiat Oncol Sect, Perugia, Italy
[7] Perugia Gen Hosp, Radiat Oncol Sect, Perugia, Italy
[8] Catholica Univ, Radiotherapy Unit, Fondazione Ric & Cura Giovanni Paolo 2, Campobasso, Italy
[9] Azienda Osped San Gerardo, Radiotherpy Unit, Monza, Italy
[10] Fondazione CNAO, Natl Ctr Oncol Hadrontherapy, Pavia, Italy
[11] IRCCS Ist Sci Romagnolo Studio Tumori IRST Dino A, Radiotherapy Unit, Meldola, Italy
[12] Osped Angelo, UOC Radioterapia Oncolog Mestre, Venice, Italy
[13] ULSS5, Radiotherapy Unit, Rovigo, Italy
[14] Univ Messina, Radiat Oncol Unit, Dent Sci & Morphol & Funct Images, Dept Biomed, Messina, Italy
[15] San Camillo Forlanini Hosp, Radiat Oncol Div, Oncol & Special Med Dept, Rome, Italy
[16] Univ Piemonte Orientale, Maggiore Carita Univ Hosp, Dept Translat Med, Dept Radiat Oncol, Novara, Italy