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The evaluated samples were collected in the period between 2008 and 2017 in the state of Maranhão, Brazil. In the period 2008–2012, data of 2010 were excluded. ATV/r: Atazavanir/ritonavir, DRV/r: Darunavir/ritonavir, LPV/r: Lopinavir/ritonavir, ABC: Abacavir, AZT: Zidovudine, FTC: Emtricitabine, 3TC: Lamivudine, TDF: Tenofovir, EFV: Efavirenz, ETR: Etravirine, NVP: Nevirapine, RPV: Rilpivirine.
