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Kaplan-Meier estimates of distant metastasis free survival. (A) Kaplan-Meier estimate of distant metastasis free survival. (B) Kaplan–Meier estimate of distant metastasis free survival based on IMRT versus CC-IMRT. Blue line represents IMRT and green line CC-IMRT (p = 0.546). Color images are available online at www.liebertpub.com/thy
