HLA-DQ beta-ChainsHLA-DQ AntigensNarcolepsyAllelesHLA AntigensHLA-DQ alpha-ChainsHLA-DRB1 ChainsHLA-DR AntigensGene FrequencyHaplotypesGenotypeHistocompatibility TestingPolymorphism, GeneticGenetic Predisposition to DiseaseGenes, MHC Class IIBahrainHLA-B AntigensHLA-DP AntigensHLA-DP beta-ChainsHLA-A AntigensPolymorphism, Single NucleotideMolecular Sequence DataPhenotypeGenetic VariationDiabetes Mellitus, Type 1Polymerase Chain ReactionMutationHLA-D AntigensHistocompatibility Antigens Class IHLA-C AntigensLinkage DisequilibriumHistocompatibility Antigens Class IICase-Control StudiesHomozygoteCataplexyBase SequenceHeterozygoteHLA-DR Serological SubtypesGenetic MarkersGenes, MHC Class IMajor Histocompatibility ComplexHLA-DR4 AntigenPolymorphism, Restriction Fragment LengthAmino Acid Sequence