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. 2021 Oct 25;54(3):803–816. doi: 10.4143/crt.2021.764

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Copyright © 2022 by the Korean Cancer Association

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 4 — Forest plot of subgroup analysis of histology: overall survival (A–D), progression-free survival (E–G). (A, E) Study of histology of SQ in contrast to Chemo. (B, C, F, G) Study of histology of No-SQ in contrast to Chemo and Beva+Chemo, respectively. (D) Study of histology of both SQ and No-SQ in contrast to Chemo. Atezo+Beva+Chemo, atezolizumab+bevacizumab+chemotherapy; Atezo+Chemo, atezolizumab+chemotherapy; Beva+Chemo, bevacizumab+chemotherapy; Chemo, chemotherapy; CI, confidence interval; HR, hazard ratio; Nivo, nivolumab; Nivo+Ipi, nivolumab+ipilimumab; No-SQ, nonsquamous; Pembro+Chemo, pembrolizumab+chemotherapy; SQ, squamous.