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. 2017 Nov 29;12(11):e0188881. doi: 10.1371/journal.pone.0188881

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© 2017 Elisia et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 6 — (A) Differences in the proportions of monocytes, T cells and NK cells with age. (B) Differences with age in the % of T cells that are CD4+ and CD8+, in the CD4/CD8 ratio with age, in the proportion of T cells that are Tregs, and in the proportion of CD4 and CD8 cells that are CD28+ and -. (C) Anti-CD3 + anti-CD28 stimulated proliferation (left panel) and IFNγ production (right panel). Results are expressed as the mean ± SEM. * indicates a statistically significant difference (P <0.05) between the young and old cohorts.