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Kaplan-Meier curves for overall survival of patients with PS of 0/1 or 2 to 4 treated with nivolumab and overall survival of patients in palliative care (A). Kaplan-Meier curves for overall survival of patients with PS of 2 and 3/4 treated with nivolumab and overall survival of patients in palliative care (B). Abbreviations: OS: overall survival; PS: performance status; PC: palliative care; CI: confidence interval.
