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Intracellular cytokine expression in circulating CD4+ and CD8+ T cells. (A-H) Quantitative flow cytometric analyses of Th1/Tc1, Th2/Tc2, Th9/Tc9 and Th17/Tc17 subsets of CD4+/CD8+ T cells. Patients without Pneumocystis jirovecii pneumonia (PCP), n = 17; patients with PCP, n = 27. *P < 0.05; **P < 0.01; ***P < 0.001. NS, not significant.
