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. 2019 Feb 14;10(4):815–822. doi: 10.1111/1759-7714.13004

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© 2019 The Authors. Thoracic Cancer published by China Lung Oncology Group and John Wiley & Sons Australia, Ltd

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Kaplan–Meier curves of progression‐free survival (PFS) in patients with PD‐L1 expression in (a) ≥ 50% of tumor cells and (b) ≥ 1% of tumor cells. MPE, malignant pleural effusion; NR, not reached. () Without MPE, and () With MPE.

Inline graphic — Kaplan–Meier curves of progression‐free survival (PFS) in patients with PD‐L1 expression in (a) ≥ 50% of tumor cells and (b) ≥ 1% of tumor cells. MPE, malignant pleural effusion; NR, not reached. () Without MPE, and () With MPE.