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. 2015 Nov 8;2016:7651645. doi: 10.1155/2016/7651645

Figure 2.

Figure 2

Age-dependent frequency of Lin−/CD45− cell subsets expressing (a) CD133, (b) CD34, and (c) CXCR4 into the PB. Three groups of healthy human volunteers were designed according to their age: “young” (20–39 years; n = 13), “middle” (40–59 years; n = 10), and “older” (60–70 years; n = 5). Frequency of Lin− CD45− cell subsets was calculated per mL of PB. Each square represents the number of VSELs/mL per volunteer in each group. The difference between the three groups of volunteers is not statistically significant (P > 0.05; one-way analysis of variance (ANOVA)).