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. 2011 May 31;6(5):e19902. doi: 10.1371/journal.pone.0019902

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Wright et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Bar graphs represent cytokines concentrations (pg/ml) as a proportion of the total concentration of Th₁ and Th₂ cytokines measured. These have been stratified by HIV-1 disease stage (A) or HIV-1 clade (B) with shaded and patterned areas corresponding to Th₁ and Th₂ cytokines respectively. ** = p<0.0001 (Mann Whitney test) for total Th₁ vs Th₂ cytokines when compared across all HIV positive study participants (n = 50).