Drug ResistanceDrug Resistance, ViralDrug Resistance, NeoplasmDrug Resistance, MultipleDrug Resistance, MicrobialDrug CarriersDrug Resistance, BacterialDrug Delivery SystemsParticle SizeChemistry, PharmaceuticalDoxorubicinDelayed-Action PreparationsAntineoplastic AgentsDrug Resistance, Multiple, BacterialPolyethylene GlycolsDrug Resistance, FungalDose-Response Relationship, DrugMicrobial Sensitivity TestsMutationAnti-Bacterial AgentsDisease ResistanceDrug Resistance, Multiple, ViralP-GlycoproteinVascular ResistanceAntitubercular AgentsTuberculosis, Multidrug-ResistantAnti-HIV AgentsHIV-1AntimalarialsHIV ProteaseMultidrug Resistance-Associated ProteinsMolecular Sequence DataGenotypeHIV Reverse TranscriptaseHIV InfectionsMycobacterium tuberculosisR FactorsATP-Binding Cassette TransportersCell Line, TumorGenes, MDRTetracycline ResistanceDrug Resistance, Multiple, FungalPenicillin ResistanceStreptomycinTetracyclineReverse Transcriptase InhibitorsIsoniazidChloroquineSequence Analysis, DNABacterial ProteinsPlant DiseasesParasitic Sensitivity TestsPhenotypeRifampinPlasmodium falciparumDNA, BacterialEscherichia coliAirway ResistanceConjugation, GeneticBase SequencePolymerase Chain ReactionPyrimethaminePlasmidsMutation, MissenseMembrane Transport ProteinsApoptosisTumor Cells, CulturedKanamycinbeta-Lactam ResistanceHIV Protease InhibitorsResistance TrainingTreatment FailureAmino Acid SequenceChloramphenicol ResistanceMalaria, FalciparumCell SurvivalGenes, BacterialInhibitory Concentration 50SulfadoxineAmpicillin ResistanceAntifungal AgentsTime FactorsTetrahydrofolate Dehydrogenasepol Gene Products, Human Immunodeficiency VirusAntiviral AgentsDrug Screening Assays, AntitumorImmunity, InnateAntibiotics, AntineoplasticEthambutolSignal TransductionReverse Transcriptase Polymerase Chain ReactionErythromycinDrug CombinationsCisplatinP-GlycoproteinsAzolesAnti-Retroviral AgentsGene Expression Regulation, NeoplasticDihydropteroate SynthaseChloramphenicol