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Survival curves. Progression-free survival in the three different treatment arms: (A) RAS- and BRAF-tested population; (B) RAS and BRAF wild-type population. Progression-free survival from start of treatment cycle 9 in arms A (FLOX) and C (maintenance treatment with cetuximab) in patients with (C) RAS/BRAF wild-type tumours and (D) RAS-mutated tumours. CI=confidence interval; HR=hazard ratio.
