Antibodies, AnticardiolipinLupus Coagulation InhibitorAntiphospholipid SyndromeCardiolipinsbeta 2-Glycoprotein IAntibodies, AntiphospholipidLupus Erythematosus, SystemicAnticoagulantsBlood Coagulation FactorsAutoantibodiesAbortion, HabitualThrombosisImmunoglobulin GBlood Coagulation TestsPartial Thromboplastin TimeThrombophiliaImmunoglobulin MProthrombinAntibodiesActivated Protein C ResistanceAntibodies, AntinuclearGlycoproteinsAntibody SpecificityEnzyme-Linked Immunosorbent AssayProtein CProtein S DeficiencyPregnancy Complications, HematologicLupus NephritisProthrombin TimeVenous ThrombosisAntibodies, MonoclonalPhospholipidsImmunoglobulin IsotypesAbortion, SpontaneousPregnancyPregnancy ComplicationsBlood CoagulationLupus Vasculitis, Central Nervous SystemBlood Coagulation DisordersLeg UlcerAutoimmune DiseasesFetal DeathThrombocytopeniaProspective StudiesCalciphylaxisThromboembolismAntibodies, ViralWarfarinRisk FactorsFactor VAntibodies, BacterialCerebrovascular DisordersThrombophlebitisPrednisoloneCase-Control StudiesImmunoglobulin ABiological MarkersProtein SPulmonary EmbolismAntibody FormationRetrospective StudiesPhosphatidylserinesPregnancy OutcomeAntibodies, NeutralizingRecurrenceCerebral InfarctionImmunoglobulin IdiotypesFactor X