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. 2023 May 12;10:1192762. doi: 10.3389/fmed.2023.1192762

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Copyright © 2023 Fitzsimmons, Singh, Walker, Newton, Evans, Crosbie and Ryan.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Subgroup meta-analysis comparting the overall survival grouped by studies that used different ICPI agents. Abbreviations: ATZ: Atezolizumab; AVE: Avelumab; NIV: Nivolumab; PMB: Pembrolizumab.