AllelesGenotypeHeterozygoteGene FrequencyPolymorphism, GeneticHomozygotePolymorphism, Single NucleotideGenetic Predisposition to DiseaseMethylenetetrahydrofolate Reductase (NADPH2)Case-Control StudiesHaplotypesPolymerase Chain ReactionMutationRisk FactorsGenetic VariationPhenotypeMolecular Sequence DataBase SequencePolymorphism, Restriction Fragment LengthSequence Analysis, DNAGenetic MarkersLinkage DisequilibriumModels, GeneticMicrosatellite RepeatsChromosome MappingAsian Continental Ancestry GroupGenetics, PopulationCrosses, GeneticPhylogenyDNA PrimersAmino Acid SequenceDNA Mutational AnalysisPedigreeGenetic LinkageHLA-DRB1 ChainsSelection, GeneticChinaRecombination, GeneticExonsDNAEuropean Continental Ancestry GroupMinisatellite RepeatsGenetic LociHLA-DQ AntigensApolipoprotein E4Genotyping TechniquesPoint MutationCohort StudiesTime FactorsGenetic Association StudiesPromoter Regions, GeneticGene DeletionGenome-Wide Association StudyHeterozygote DetectionGenes, DominantMutation, MissenseHLA-DR AntigensApolipoproteins EJapanGenes, RecessiveQuantitative Trait LociGenetic TestingGenes, LethalSpecies SpecificityOdds RatioHLA-B AntigensEvolution, MolecularHepacivirusEpistasis, GeneticAfrican Continental Ancestry GroupCatechol O-MethyltransferaseMolecular EpidemiologyAryl Hydrocarbon HydroxylasesPeptidyl-Dipeptidase AIntronsAge of OnsetGlutathione TransferaseGenetic Complementation TestCodonGenes, PlantSuppression, GeneticPolymorphism, Single-Stranded ConformationalMice, Inbred C57BLBreedingCluster AnalysisSerotonin Plasma Membrane Transport ProteinsPrevalenceCloning, MolecularBiological EvolutionHLA-DQ alpha-ChainsSequence AlignmentDrosophila melanogasterSequence DeletionCytochrome P-450 CYP2D6Disease SusceptibilityPharmacogeneticsComputer SimulationBrazilDNA-Binding ProteinsMutagenesis