Antibodies, AnticardiolipinCardiolipinsLupus Coagulation InhibitorAntiphospholipid Syndromebeta 2-Glycoprotein IAntibodies, AntiphospholipidLymphocytesLupus Erythematosus, SystemicAutoantibodiesImmunoglobulin GAntibodiesAbortion, HabitualImmunoglobulin MThrombosisAntibody SpecificityAntibodies, MonoclonalEnzyme-Linked Immunosorbent AssayBlood Coagulation FactorsAntibodies, AntinuclearLymphocyte ActivationGlycoproteinsThrombophiliaImmunoglobulin IsotypesBlood Coagulation TestsProthrombinAntibodies, ViralLupus Vasculitis, Central Nervous SystemPartial Thromboplastin TimeProtein S DeficiencyPregnancyLeg UlcerPregnancy Complications, HematologicCalciphylaxisActivated Protein C ResistanceLymphocyte SubsetsT-LymphocytesAntibodies, BacterialThrombocytopeniaAntibody FormationAbortion, SpontaneousImmunoglobulin APregnancy ComplicationsMice, Inbred BALB CAutoimmune DiseasesPrednisoloneB-LymphocytesVenous ThrombosisProtein CEpitopesAntibodies, NeutralizingProspective StudiesFetal DeathFluorescent Antibody TechniqueAnticoagulantsImmunization, PassiveBiological MarkersBinding Sites, AntibodyAntibodies, Anti-IdiotypicImmunoglobulin IdiotypesLymphocyte CountPhospholipidsPhytohemagglutininsCase-Control StudiesAntibody AffinitySpleenImmunizationCerebrovascular DisordersCerebral InfarctionCells, CulturedCross ReactionsConcanavalin ARisk FactorsAntigen-Antibody ComplexAntigens, SurfaceFlow CytometryAntigen-Antibody Reactions