AllelesHLA AntigensAntigensHLA-B27 AntigenGene FrequencyGenotypeMolecular Sequence DataPolymorphism, GeneticHLA-B AntigensHLA-B44 AntigenAntigens, BacterialPolymerase Chain ReactionAntigens, NeoplasmBase SequenceAmino Acid SequenceAntigens, SurfaceMutationAntigens, ViralHLA-B8 AntigenHLA-B37 AntigenSpondylitis, AnkylosingArthritis, ReactiveHLA-DR AntigensHLA-A AntigensAntigens, ProtozoanUveitis, AnteriorAntigens, Polyomavirus TransformingEpitopesHistocompatibility TestingAntigens, CDHLA-B35 AntigenHLA-C AntigensAntigens, FungalSacroiliac JointHLA-DQ AntigensH-2 AntigensHLA-B7 AntigenAntigens, HelminthSpondylarthropathiesHistocompatibility Antigens Class IHistocompatibility Antigens Class IICross ReactionsCarcinoembryonic AntigenAntibodies, MonoclonalAntigens, Viral, TumorAwards and PrizesHistocompatibility AntigensReceptors, Antigen, T-CellHLA-A2 AntigenSkin Window TechniqueT-Lymphocytes, CytotoxicHLA-B51 AntigenHLA-D AntigensPhenotypeHIV Long-Term SurvivorsT-LymphocytesHLA-DRB1 ChainsProliferating Cell Nuclear AntigenGenetic Predisposition to DiseaseHaplotypesReceptors, Antigen, B-CellO AntigensProstate-Specific AntigenEnzyme-Linked Immunosorbent AssayAntigens, CD8Cell LinePolymorphism, Single NucleotideArthritis, InfectiousGenetic VariationImmunoglobulin GAntibodies, BacterialAntigens, CD15Epitopes, T-LymphocyteCD8-Positive T-LymphocytesAntigens, Tumor-Associated, CarbohydrateHepatitis B Surface AntigensLymphocyte ActivationAntibody SpecificityMice, Inbred BALB CBlood Group AntigensAntigens, CD3HIV-1AutoantibodiesKlebsiella pneumoniaeInterferon-gammaFluorescent Antibody TechniqueAntigens, CD4Genes, MHC Class IIHLA-DR4 AntigenB-LymphocytesPeptidesMice, Inbred C57BLHLA-DR3 AntigenCells, CulturedArthritisReceptors, Antigen, T-Cell, alpha-betaSequence Analysis, DNAAntigens, CD45Hepatitis B AntigensCase-Control Studies