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Phenotypic changes in T cells associated with anti-TB therapy. Ex vivo frequencies of CD4+ CD45RO+ CD27+ (A), CD4+ CD45RO+ CD27− (B), CD4+ CD45RO− CD27+ (C), and CD4+ CD45RO− CD27− (D) T cells in four ATB patients before and after anti-TB treatment. Paired Student's t test: *, P ≤ 0.05.
