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Fig. 3 | BMC Cancer

Fig. 3

From: Impact of postoperative daily image-guided intensity-modulated radiotherapy on overall and local progression-free survival in patients with oral cavity cancer

Fig. 3

The actuarial 5-year Kaplan–Meier estimates of local progression-free survival according to risk factors in postoperative oral cavity cancer patients treated with intensity-modulated radiation therapy (IMRT) or helical tomotherapy (HT), with or without concurrent chemotherapy. a positive resection-margin; b positive perineural invasion (PNI); c positive lymphovascular space involvement (LVSI); d two or more positive lymph nodes; e T3,4

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BMC Cancer

ISSN: 1471-2407

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