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Pairwise comparisons: median OS HR and median of median OS. carbo, carboplatin; cetux, cetuximab; cis, cisplatin; doc, docetaxel; gem, gemcitabine; HR, hazard ratio; nab-tax, nab-paclitaxel; neci, necitumumab; OS, overall survival; tax, paclitaxel; vin, vinorelbine.
