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Kaplan–Meier estimates of overall survival (OS) and cancer-specific survival (CSS) according to PDC and NLR status: (a) OS according to PDC status (p < 0.001); (b) CSS according to PDC status (p < 0.001); (c) OS according to NLR status (p < 0.001); and (d) CSS according to NLR status (p = 0.011).
