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Kaplan–Meier survival estimate. Cisplatin‐based platinum‐pemetrexed (PP) doublets: (a) progression‐free survival (PFS) and (b) overall survival. Carboplatin‐based PP doublets: (c) PFS and (d) OS. Cisplatin‐based versus carboplatin‐based PP doublets: (e) PFS and (f) OS.
