Sensitivity, specificity, upward and downward misclassification rates, and positive and negative predictive values of the BD FACSPresto CD4+ T cell technology used in the laboratory compared with the BD FACSCalibur across three CD4+ T cell thresholds.

<p>Sensitivity, specificity, upward and downward misclassification rates, and positive and negative predictive values of the BD FACSPresto CD4+ T cell technology used in the laboratory compared with the BD FACSCalibur across three CD4+ T cell thresholds.