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Kaplan–Meier plots of overall survival according to RAS and BRAF mutation status (a) and according to serum VEGF‐A level (b). Bmab, bevacizumab; CI, confidence interval; HR, hazard ratio; Pmab, panitumumab. WT,RAS or BRAF wild type; MT,RAS or BRAF mutant. sVEGF‐A, serum vascular endothelial growth factor‐A.
