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Forest plots of PFS and OS in NSCLC using anti-PD-1 or in NSCLC using anti-PD-L1 or in melanoma using CTLA-4. (a) Forest plot of PFS in NSCLC using anti-PD-1 or in NSCLC using anti-PD-L1 or in melanoma using CTLA-4. (b) Forest plot of OS in NSCLC using anti-PD-1 or in NSCLC using anti-PD-L1 or in melanoma using CTLA-4.
