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Impact of CMV Status on CD4+ T Cell Count and CD4+/CD8+ Ratio in TB Patients with or without COPD. Comparison of CD4+ T cell count among 4 groups: NCOPD + TB CMV−, NCOPD + TB CMV+, COPD + TB CMV−, and COPD + TB CMV+ (A). Comparison of CD4+/CD8+ ratio among the same 4 groups (B).
