Figure 1

Overall survival rate (OS). (a) OS in the entire population. (b) OS according to primary sites. (c) OS according to nasopharyngeal cancer or not. (d) OS according to volumes of GTV.

Overall survival rate (OS). (a) OS in the entire population. (b) OS according to primary sites. (c) OS according to nasopharyngeal cancer or not. (d) OS according to volumes of GTV.