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Smoking history influences PFS in patients with non-small cell lung cancer who were prescribed pembrolizumab. Log-rank analysis, represented as Kaplan-Meier survival plots, was used to compare progression-free survival in (A) smokers (former and current; red) and non-smokers (blue) and in (B) current smokers (red), former smokers (green) and non-smokers (blue). Adapted from Mander et al.
