Antiphospholipid SyndromeAntibodies, AntiphospholipidAntibodies, Anticardiolipinbeta 2-Glycoprotein IAnticoagulantsLupus Coagulation InhibitorAntibodiesWarfarinInternational Normalized RatioThrombosisAntibody SpecificityCardiolipinsLupus Erythematosus, SystemicAntibodies, MonoclonalThromboembolismAntibodies, ViralCatastrophic IllnessVenous ThrombosisAntibodies, BacterialThrombophiliaAutoantibodiesHemorrhageHeparinAbortion, HabitualPartial Thromboplastin TimePulmonary EmbolismImmunoglobulin GAntibody FormationAntibodies, NeutralizingHeparin, Low-Molecular-WeightBlood CoagulationSneddon SyndromeGlycoproteinsImmunoglobulin MAtrial FibrillationAntibody AffinityWhole Blood Coagulation TimeBinding Sites, AntibodyPregnancy Complications, HematologicPhenprocoumonProthrombin TimeAntibodies, AntinuclearVenous ThromboembolismProthrombinPregnancyAspirinPregnancy ComplicationsFluorescent Antibody TechniqueThrombophlebitisEpitopesAcenocoumarolHydroxychloroquineAntibodies, Anti-IdiotypicSkin Diseases, VascularHeparin AntagonistsThrombocytopeniaVitamin KBlood Coagulation FactorsTreatment Outcomebeta-AlanineEnzyme-Linked Immunosorbent AssayCross ReactionsRisk FactorsAbortion, SpontaneousStrokeHIV AntibodiesDrug MonitoringAdministration, OralAntibodies, NeoplasmAntibodies, ProtozoanPhospholipidsRecurrenceLupus Vasculitis, Central Nervous SystemBlood Coagulation TestsProspective StudiesRetrospective StudiesThromboplastinHeart Valve DiseasesFibrinolytic AgentsPlatelet Aggregation InhibitorsAntithrombinsTime FactorsAntigen-Antibody ReactionsFetal DeathAutoimmune DiseasesBlood Coagulation DisordersFollow-Up StudiesPanniculitis, Lupus ErythematosusImmunoglobulin Fab FragmentsActivated Protein C ResistancePlasmapheresisVena Cava FiltersFactor VMice, Inbred BALB CAnnexin A5EndocarditisHeart Valve ProsthesisAntibodies, FungalMolecular Sequence DataCerebrovascular Disorders