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Kaplan–Meier estimates for overall survival stratified by ECOG PS: (a) ECOG PS 0 in Japanese and non‐Japanese patients and (b) ECOG PS ≥1 in Japanese and non‐Japanese patients. CI, confidence interval; ECOG PS, Eastern Cooperative Oncology Group performance status; HR, hazard ratio; mo, month; mOS, median overall survival; NE, not estimable.
