Reverse Transcriptase InhibitorsHIV Reverse TranscriptaseAnti-HIV AgentsDrug Resistance, ViralBenzoxazinesNevirapineHIV-1HIV InfectionsDelavirdineZidovudineHIV Protease InhibitorsOrganophosphonatesPyridazinesRNA-Directed DNA PolymeraseAntiretroviral Therapy, Highly ActiveOxazinesStavudineDideoxynucleosidesDrug Resistance, Multiple, ViralAdeninePyrimidinonesViral LoadLamivudineDidanosineNucleosidesRitonavirLopinavirAnti-Retroviral AgentsPyranocoumarinsZalcitabineCD4 Lymphocyte CountDideoxynucleotidesHIVTreatment FailureMutationRNA, ViralDrug Therapy, CombinationHIV ProteaseVirus ReplicationRibonuclease HMutation, MissenseNelfinavirDrug InteractionsHIV Integrase InhibitorsGenotypeHIV-Associated Lipodystrophy SyndromeMolecular Sequence DataTelomeraseNitrilesReverse Transcriptase Polymerase Chain ReactionAntiviral AgentsProtease InhibitorsAcquired Immunodeficiency SyndromeThymine NucleotidesAcidosis, LacticReverse TranscriptionAmino Acid Substitutionpol Gene Products, Human Immunodeficiency VirusIntegrase InhibitorsCell LineFuransHIV-2SaquinavirIndinavirPyrrolidinonesBase SequenceDrug Resistance, MicrobialAnilidesBenzoxazolesTreatment OutcomePyridinesInhibitory Concentration 50PyridonesPyrimidinesMicrobial Sensitivity TestsRibonuclease H, Human Immunodeficiency VirusAvian myeloblastosis virusMolecular StructureLipodystrophyModels, MolecularFoscarnetSequence Analysis, DNADNA, ViralDrug Administration ScheduleErythrocebus patasDNA, MitochondrialStructure-Activity RelationshipSulfur CompoundsArea Under CurveCohort StudiesTemplates, GeneticDrug DesignTime FactorsLeukocytes, MononuclearDeoxyadenosinesPatient ComplianceDeoxycytidineBotswanaDNA PrimersCells, Cultured