Reverse Transcriptase InhibitorsHIV Reverse TranscriptaseNucleosidesAnti-HIV AgentsDrug Resistance, ViralHIV-1BenzoxazinesNevirapineZidovudineHIV InfectionsDelavirdineOrganophosphonatesHIV Protease InhibitorsRNA-Directed DNA PolymeraseDideoxynucleosidesStavudinePurine NucleosidesAdenineDrug Resistance, Multiple, ViralDidanosineOxazinesPyrimidine NucleosidesAntiretroviral Therapy, Highly ActiveNucleoside Transport ProteinsLamivudineZalcitabinePyrimidinonesDideoxynucleotidesPyridazinesRitonavirPyranocoumarinsLopinavirViral LoadAnti-Retroviral AgentsMutationEquilibrative Nucleoside Transporter 1HIVCD4 Lymphocyte CountRNA, ViralDrug Therapy, CombinationAntiviral AgentsVirus ReplicationTreatment FailureNelfinavirThymine NucleotidesMolecular Sequence DataHIV ProteaseRibonuclease HHIV-Associated Lipodystrophy SyndromeHIV Integrase InhibitorsThioinosineReverse Transcriptase Polymerase Chain ReactionPurine-Nucleoside PhosphorylaseTelomeraseAcidosis, LacticDrug InteractionsBase SequenceDeoxyadenosinesReverse TranscriptionGuanosineMutation, Missensepol Gene Products, Human Immunodeficiency VirusGenotypeIndinavirCell LineUridineFuransSaquinavirIntegrase InhibitorsHIV-2Nucleoside-Diphosphate KinaseKineticsInosineDrug Resistance, MicrobialAcquired Immunodeficiency SyndromePyrrolidinonesNitrilesAmino Acid SubstitutionNucleotidesAnilidesInhibitory Concentration 50Molecular StructureBenzoxazolesPyridinesProtease InhibitorsDeoxycytidinePyridonesNucleoside QDNA, ViralStructure-Activity RelationshipAmino Acid SequenceAvian myeloblastosis virusChromatography, High Pressure LiquidFoscarnetLipodystrophyCytidineEquilibrative-Nucleoside Transporter 2Models, MolecularPyrimidinesNucleoside-Triphosphatase