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Figure 2 | Immunity & Ageing

Figure 2

From: Ageing is associated with a decline in peripheral blood CD56bright NK cells

Figure 2

The effect of age on peripheral blood NK cells. These graphs illustrate (a) the number of NK cells μl/blood and (b) the percentage of lymphocytes that NK cells represent within samples in each age group; 20–40(n = 25) 40–60(n = 23) and 60 + (n = 67). The mean values within each respective cohort group are marked. Statistical analysis was carried out as described in the Methods; p values between groups are displayed and results are summarised further in table 1.

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