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Kaplan–Meier overall survival estimates after PSM. DRs (n = 40) had a significantly longer median OS than RECIST v1.1 defined PD without new lesions (n = 40), 11.70 months (95% CI 9.10–NA) versus 5.25 months (95% CI 4.13–11.00), respectively (p = 0.019)
