Fig. 1

Cumulative local failure (a), regional failure (b), locoregional failure (c), and distant failure (d) rates of 749 patients with nasopharyngeal carcinoma (NPC) who were treated with intensity-modulated radiation therapy (IMRT)
Cumulative local failure (a), regional failure (b), locoregional failure (c), and distant failure (d) rates of 749 patients with nasopharyngeal carcinoma (NPC) who were treated with intensity-modulated radiation therapy (IMRT)