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. 2009 Sep 2;47(11):3530–3539. doi: 10.1128/JCM.00673-09

FIG. 6.

FIG. 6.

Intra-assay variability across experimental conditions. Intra-assay variability was measured using the %CV for replicate p24 measurements. Data shown represent the median %CV and interquartile range for p24 release determined at the assay SOFT for seven laboratories using their preferred explant method under each experimental condition (Inline graphic), alongside the total %CV for the study (Inline graphic). (a) Source of virus/medium; (b) effect of microbicide PRO 2000; (c) growth of different HIV-1 isolates; (d) tissue type. Significant differences were determined using the Mann-Whitney test.