Age showed a trend toward differentiation but did not reach statistical significance.
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A Subset of PD-1-Expressing CD56<sup>bright</sup> NK Cells Identifies Patients with Good Response to Immune Checkpoint Inhibitors in Lung Cancer.
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The sentences
However, there was a clear trend for increased OS if patients were grouped in negative (less than 1%) vs. positive (more than 1%) PD-L1 irrespectively of the level of positiveness. 3.2.2.