Fig. 2From: An observational study in an urban Ugandan clinic comparing virological outcomes of patients switched from first-line antiretroviral regimens to second-line regimens containing ritonavir-boosted atazanavir or ritonavir-boosted lopinavirPercentage suppression with different viral load cutoffs in patients by duration on second line therapy at time of viral load (standard ATV/r versus LPV/r based second-line regimen)Back to article page