Long-term outcome of second-line antiretroviral therapy in resource limited settings.

Subjects: “…Second line…”

Suboptimal entravirine activity is common during failure of nevirapine based combination antiretroviral therapy in a cohort infected with non-B subtype HIV-1

Subjects: “…second line…”

Tenofovir based regimens associated with less drug resistance in hiv-1 infected nigerians failing first-line antiretroviral therapy.

Subjects: “…Resource-limited settings second line…”