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. 2021 Jun 12;13(12):2948. doi: 10.3390/cancers13122948

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Survival curves for CRC patients across quartiles of CD4+ T cell proportions by tumor subsite. (A) Overall and (B) CRC-specific survival curve among patients with distal colon cancer; (C) overall and (D) CRC-specific survival curve among patients with proximal colon cancer; (E) overall and (F) CRC-specific survival curve among patients with rectal cancer. Note: Survival curves were adjusted for age, sex, tumor stage, timing of blood sampling and batch. p values were derived from G-rho family of tests. Quartile 1: lowest quartile; Quartile 4: highest quartile.