Polymorphism, GeneticPolymorphism, Single NucleotideCytochrome P-450 CYP3ACytochrome P-450 CYP2D6Cytochrome P-450 CYP1A1Gene FrequencyGenetic Predisposition to DiseaseCytochrome P-450 CYP1A2AllelesAryl Hydrocarbon HydroxylasesHaplotypesCase-Control StudiesGenotypeCytochrome P-450 Enzyme SystemPolymerase Chain ReactionPolymorphism, Single-Stranded ConformationalGenetic Association StudiesAsian Continental Ancestry GroupLinkage DisequilibriumGenetic VariationCytochrome P-450 CYP2B1Base SequenceMolecular Sequence DataSequence Analysis, DNAHomozygoteGenetic MarkersPhenotypeMixed Function OxygenasesRisk FactorsEuropean Continental Ancestry GroupPromoter Regions, GeneticChinaMethylenetetrahydrofolate Reductase (NADPH2)Amplified Fragment Length Polymorphism AnalysisHeterozygotePharmacogeneticsDNA PrimersMicrosomes, LiverExonsGlutathione TransferaseMutationSteroid HydroxylasesOdds RatioChromosome MappingDNA Mutational AnalysisHydroxylationMicrosatellite RepeatsGenome-Wide Association StudyGenetic LinkageCatechol O-MethyltransferaseJapanAmino Acid SubstitutionGenetics, PopulationDNAPeptidyl-Dipeptidase APhylogenyIntronsGlutathione S-Transferase piMinisatellite RepeatsModels, GeneticCohort StudiesSteroid 17-alpha-HydroxylaseSteroid 16-alpha-HydroxylaseCodonDeoxyribonucleases, Type II Site-SpecificBiotransformationPedigreeRiskGenotyping TechniquesArylamine N-AcetyltransferaseINDEL MutationReceptors, CalcitriolSelection, GeneticSpecies SpecificitySerotonin Plasma Membrane Transport ProteinsKoreaXeroderma Pigmentosum Group D ProteinAmino Acid SequenceAldosterone SynthaseSmokingGenetic LociRNA, MessengerIsoenzymesPublication BiasGenetic TestingMephenytoinEnzyme InductionGene Expression Regulation, EnzymologicEvolution, MolecularPoint MutationDNA FingerprintingAryldialkylphosphataseMutation, MissenseGlucuronosyltransferaseAromataseGenome, HumanEthnic GroupsLiverLogistic ModelsDealkylation