Figure 4From: Tuberculosis associated with Mycobacterium tuberculosisBeijing and non-Beijing genotypes: a clinical and immunological comparison IFN-γ : IL-4 cDNA copy number ratio of pulmonary tuberculosis patients. Patients infected with non-Beijing strains had significantly lower ratios than those infected with Beijing strains (p = 0.01). The bars indicate log median ratios.Back to article page