beta 2-Glycoprotein IAntibodiesAntibody SpecificityAntiphospholipid SyndromeAntibodies, AnticardiolipinAntibodies, MonoclonalAntibodies, ViralAntibodies, BacterialScleroderma, SystemicAutoantibodiesAntibodies, AntiphospholipidAntibody FormationDNA Topoisomerases, Type IHuman T-lymphotropic virus 2Antibody AffinityLupus Coagulation InhibitorAntibodies, NeutralizingEpitopesDeltaretrovirus InfectionsAntibodies, AntinuclearFluorescent Antibody TechniqueGlycoproteinsCross ReactionsHTLV-I InfectionsEnzyme-Linked Immunosorbent AssayImmunoglobulin GDeltaretrovirusAntigen-Antibody ReactionsImmunoglobulin MDeltaretrovirus AntibodiesQ FeverBinding Sites, AntibodyCoxiella burnetiiAntibodies, Anti-IdiotypicLupus Erythematosus, SystemicHuman T-lymphotropic virus 1Paraneoplastic SyndromesHIV AntibodiesMolecular Sequence DataAntibodies, NeoplasmAntibodies, ProtozoanIsoantibodiesAmino Acid SequenceRNA Polymerase ICardiolipinsHistocompatibility Antigens Class IImmunoblottingHuman T-lymphotropic virus 3AutoantigensAntibodies, FungalNeutralization TestsCells, CulturedAntibodies, BispecificSingle-Chain AntibodiesSimian T-lymphotropic virus 1Mice, Inbred BALB CAntibodies, BlockingCell LineAntigen-Antibody ComplexBlood DonorsThrombosisImmunoglobulin Fab FragmentsAntibodies, HeterophileAntibodies, CatalyticSkinSeroepidemiologic StudiesImmunoenzyme TechniquesT-LymphocytesRabbitsImmunoglobulin AAntibodies, Monoclonal, HumanizedFluorescent Antibody Technique, IndirectGenes, pXBlotting, WesternHybridomasImmune SeraAntigens, SurfaceAntigens, ViralEpitope MappingImmunizationPrimate T-lymphotropic virus 3Gene Products, taxRetroviridae InfectionsAntigensBase SequenceAntigens, BacterialB-LymphocytesImmunization, PassiveRecombinant ProteinsImmunoassayImmunoglobulin FragmentsMolecular WeightImmunohistochemistryGene Products, envRetroviridaeViral Envelope ProteinsRadioimmunoassayRadioimmunoprecipitation AssaySerologic TestsElectrophoresis, Polyacrylamide Gel