AllelesGene FrequencyGenotypePolymorphism, GeneticMolecular Sequence DataPolymerase Chain ReactionBase SequenceMutationAmino Acid SequencePolymorphism, Single NucleotideGenetic Predisposition to DiseasePhenotypeHaplotypesGenetic VariationHeterozygoteHomozygoteChromosome MappingLinkage DisequilibriumMicrosatellite RepeatsGenetic MarkersCase-Control StudiesHLA-DRB1 ChainsCrosses, GeneticPolymorphism, Restriction Fragment LengthModels, GeneticGenetics, PopulationSequence Analysis, DNAPedigreeGenetic LinkageGenetic Association StudiesAsian Continental Ancestry GroupExonsDNA Mutational AnalysisDNA PrimersHLA-DQ AntigensHLA-DR AntigensGenes, LethalSelection, GeneticGenetic LociGenes, Dominant