Antiphospholipid SyndromeAntibodies, Antiphospholipidbeta 2-Glycoprotein IAntibodies, AnticardiolipinLupus Coagulation InhibitorCatastrophic IllnessThrombosisCardiolipinsLupus Erythematosus, SystemicSyndromeAbortion, HabitualAutoantibodiesSneddon SyndromeAnticoagulantsPregnancy Complications, HematologicGlycoproteinsThrombophiliaImmunoglobulin GPregnancy ComplicationsPregnancyVenous ThrombosisWarfarinSkin Diseases, VascularProthrombinPlasmapheresisPulmonary EmbolismAbortion, SpontaneousHELLP SyndromeFetal DeathThrombocytopeniaPartial Thromboplastin TimeImmunoglobulin MEnzyme-Linked Immunosorbent AssayMeningismHydroxychloroquineAdrenal InsufficiencyBlue Toe SyndromeThromboplastinLupus Vasculitis, Central Nervous SystemCopying ProcessesAnnexin A2PhospholipidsThrombophlebitisAutoimmune DiseasesHeart Valve DiseasesAnnexin A5Heparin, Low-Molecular-WeightAspirinAntibodies, MonoclonalEndocarditisPhosphatidylserinesBlood Coagulation FactorsInfarctionPuerperal DisordersRisk FactorsAntibodies, AntinuclearFever of Unknown OriginLupus NephritisAntibody Specificity