GenotypeGene FrequencyPolymorphism, Single NucleotideGenetic VariationPolymorphism, GeneticAllelesHaplotypesModels, GeneticPhenotypeGenetic Predisposition to DiseasePolymerase Chain ReactionPhylogenySequence Analysis, DNACase-Control StudiesPolymorphism, Restriction Fragment LengthHepacivirusMolecular Sequence DataHomozygoteMolecular EpidemiologyAsian Continental Ancestry GroupGenetic MarkersChinaMethylenetetrahydrofolate Reductase (NADPH2)Risk FactorsBase SequenceHeterozygoteMutationGenotyping TechniquesGlutathione TransferaseHepatitis CLinkage DisequilibriumHepatitis C, ChronicRNA, ViralRibavirinHepatitis B virusCluster AnalysisCatechol O-MethyltransferasePeptidyl-Dipeptidase AAntiviral AgentsDNA PrimersInterferon-alphaEuropean Continental Ancestry GroupApolipoproteins EMicrosatellite RepeatsArylamine N-AcetyltransferaseDNA, ViralMinisatellite RepeatsJapanCohort StudiesGenetics, PopulationGenome, ViralAryl Hydrocarbon HydroxylasesPharmacogeneticsOdds RatioSerotonin Plasma Membrane Transport ProteinsPolyethylene GlycolsPrevalenceChromosome MappingApolipoprotein E4DNA FingerprintingHepatitis E virusViral LoadCytochrome P-450 CYP2D6Hepatitis BCrosses, GeneticMolecular TypingGenome-Wide Association Study