¹SS. Annunziata Hospital, Department of Radiation Oncology, Chieti, Italy; ²G. D'Annunzio University, Department of Neuroscience Imaging and Clinical Sciences, Chieti, Italy; ³G D'Annunzio University, Department of Neuroscience, Imaging and Clinical Sciences, Chieti, Italy; ⁴G. D’Annunzio University, Laboratory of Biostatistics, Department of Medical, Oral and Biotechnological Sciences, Chieti, Italy; ⁵G. D'Annunzio University, Department of Neuroscience, Imaging and Clinical Sciences, Chieti, Italy

¹Seoul National University Hospital, Radiation Oncology, Seoul, Korea Republic of

¹Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China; ²The Third People's Hospital of Sichuan Province, Department of Oncology, The Third People's Hospital of Sichuan Province, Chengdu, China; ³Chengdu Medical College, Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China; ⁴ Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China; ⁵University of Electronic Science and Technology of China, University of Electronic Science and Technology of China, Chengdu, China

¹Hadassah medical center, Radiation department, Jerusalem, Israel