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Log10 graph showing the linear regression comparing viral load data obtained from 22 matched samples of DPS versus plasma. log10 measurements of the HIV-1 RNA in DPS were assessed by NucliSens NASBA and in plasma samples were assessed by COBAS AMPLICOR HIV-1 Monitor. The values for the DPS are plotted against the values for the matched plasma samples. The linear correlation between the two samples is shown (R 2 = 0.83).
