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Naive (CCR7+ CD45RA+), effector (CCR7− CD45RA−), effector memory (CCR7− CD45RA+) and central memory (CCR7+ CD45RA−) CD8+ T cell subsets in HIV-infected Zambian children at 3-month intervals after HAART initiation and in control children, adjusted for age and sex. Error bars represent 95% confidence intervals.
