1 Radiation Oncology Unit, "SS Annunziata" Hospital, "G. D'Annunzio" University, Via Dei Vestini, 66100 Chieti, Italy.
2 Radiation Oncology Unit, "SS Annunziata" Hospital, "G. D'Annunzio" University, Via Dei Vestini, 66100 Chieti, Italy. Electronic address: lcaravatta@hotmail.com.
3 Radiation Oncology Unit, "SS Annunziata" Hospital, "G. D'Annunzio" University, Via Dei Vestini, 66100 Chieti, Italy; Department of Neuroscience, Imaging and Clinical Sciences, "G. D'Annunzio" University, 66100 Chieti, Italy.