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Kaplan–Meier curve for disease-free survival. (a) Difference between low 25th percentile of relative cerebral blood volume (rCBV) in non-enhancing lesion (≤1.14 vs >1.14; p = 0.05). (b) Significant difference for median rCBV in the entire tumour (≤0.98 vs >0.98; p = 0.02).
