Antibodies, AntiphospholipidAntiphospholipid SyndromeAntibodies, AnticardiolipinLupus Coagulation Inhibitorbeta 2-Glycoprotein IAntibodiesCardiolipinsLupus Erythematosus, SystemicThrombosisAbortion, HabitualAntibody SpecificityThrombophiliaCatastrophic IllnessAutoantibodiesAntibodies, MonoclonalImmunoglobulin GSneddon SyndromeAntibodies, ViralGlycoproteinsImmunoglobulin MAntibodies, BacterialAnticoagulantsHydroxychloroquinePregnancy Complications, HematologicPregnancy ComplicationsPartial Thromboplastin TimePregnancySkin Diseases, VascularLupus Vasculitis, Central Nervous SystemAntibodies, AntinuclearAntibody FormationBinding Sites, AntibodyPhospholipidsAntibodies, NeutralizingAbortion, SpontaneousPanniculitis, Lupus ErythematosusProthrombinWarfarinVenous ThrombosisAntibody AffinityAnetodermaEnzyme-Linked Immunosorbent AssayPulmonary EmbolismEpitopesBlood Coagulation FactorsActivated Protein C ResistanceAnnexin A5AspirinFluorescent Antibody TechniqueAutoimmune DiseasesFetal DeathThromboplastinAntibodies, Anti-IdiotypicThrombocytopeniaThromboembolismPhosphatidylserinesGangreneMyelitis, TransverseFactor VEclampsiaTrophoblastsHeparin, Low-Molecular-WeightCross ReactionsBlood CoagulationHIV AntibodiesPregnancy OutcomeRisk FactorsThrombin TimeEndocarditisThrombophlebitisAntibodies, NeoplasmAntibodies, ProtozoanHeparinImmunoglobulin AHeart Valve DiseasesBiological MarkersProtein CAntigen-Antibody ReactionsHLA-DR2 AntigenVasculitisVenous ThromboembolismProspective StudiesInternational Normalized RatioPlacental InsufficiencyPrednisolonePlasmapheresisCerebrovascular DisordersMice, Inbred BALB CImmunoglobulin Fab FragmentsEmbryo ImplantationAntibodies, FungalImmunoglobulinsBlood Coagulation TestsProtein S DeficiencyMolecular Sequence DataAnnexin A2Retinal Artery OcclusionNeutralization TestsRetrospective StudiesBlood Coagulation Disorders