Reverse Transcriptase InhibitorsHIV Reverse TranscriptaseAnti-HIV AgentsDrug Resistance, ViralHIV-1BenzoxazinesNevirapineHIV InfectionsZidovudineDelavirdineRNA-Directed DNA PolymeraseHIV Protease InhibitorsOrganophosphonatesStavudineDideoxynucleosidesDrug Resistance, Multiple, ViralAdenineOxazinesDidanosineAntiretroviral Therapy, Highly ActiveRNA, ViralLamivudineNucleosidesPyrimidinonesPyridazinesMutationPyranocoumarinsZalcitabineRitonavirViral LoadDideoxynucleotidesLopinavirMolecular Sequence DataHIVAnti-Retroviral AgentsCell LineBase SequenceCD4 Lymphocyte CountDNA, ViralDrug Therapy, CombinationAntiviral AgentsTreatment FailureVirus ReplicationHIV ProteaseRibonuclease HNelfinavirHIV Integrase InhibitorsReverse Transcriptase Polymerase Chain ReactionTelomeraseReverse TranscriptionReplication Protein AHIV-Associated Lipodystrophy SyndromeThymine NucleotidesGenotypeDrug InteractionsMutation, MissenseViral ProteinsAcidosis, LacticHIV-2pol Gene Products, Human Immunodeficiency VirusAmino Acid SequenceDNA-Binding ProteinsIntegrase InhibitorsAcquired Immunodeficiency SyndromeAmino Acid SubstitutionFuransIndinavirPlasmidsPyrrolidinonesSaquinavirDrug Resistance, MicrobialTemplates, GeneticCells, CulturedNitrilesDNA Replication TimingDNA PrimersAnilidesKineticsInhibitory Concentration 50BenzoxazolesDNA-Directed DNA PolymerasePyridinesDNA, MitochondrialProtease InhibitorsRepliconGenome, ViralHeLa CellsPyridonesSequence Analysis, DNATranscription, GeneticEscherichia coliAvian myeloblastosis virusLeukocytes, MononuclearFoscarnetPolymerase Chain ReactionTime FactorsReplication Protein CDNA HelicasesLipodystrophyModels, Molecular