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Pairwise comparisons: median PFS HR and median of median PFS. carbo, carboplatin; cis, cisplatin; doc, docetaxel; erlot, erlotinib; gem, gemcitabine; HR, hazard ratio; nab-tax, nab-paclitaxel; neci, necitumumab; PFS, progression-free survival; tax, paclitaxel; vin, vinorelbine.
