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Scatter plot of percent CD4 CD8 DP thymocytes (A) or CD4 SP/CD8 SP thymocyte ratio (B) versus HIV-1 DNA copies per 105 thymus/liver cells recovered 6 weeks after infection with the indicated HIV-1 clones. A nonlinear regression was determined and plotted using a four-parameter logistic equation and Prism software (GraphPad Software).
