“…According to this search strategy, 15 full-text articles, published between 1991 and 2019, were included in the final review. 10,[14][15][16][17][18][19][20][21][22][23][24][25][26][27] In order to summarize the available evidences, the following data were extracted from each report: authors, year of publication, tumor site, number of patients, treatment setting, intent of the treatment, dose and fractionation, RT technique, toxicity, and clinical outcome.…”