Antiphospholipid SyndromeAntibodies, Antiphospholipidbeta 2-Glycoprotein IAntibodies, AnticardiolipinLupus Coagulation InhibitorCatastrophic IllnessThrombosisCardiolipinsLupus Erythematosus, SystemicSyndromeAbortion, HabitualAutoantibodiesSneddon SyndromeAnticoagulantsPregnancy Complications, HematologicGlycoproteinsThrombophiliaImmunoglobulin GPregnancy ComplicationsPregnancyVenous ThrombosisWarfarinSkin Diseases, VascularPlasmapheresisProthrombinAbortion, SpontaneousPulmonary EmbolismHELLP SyndromeFetal DeathThrombocytopeniaPartial Thromboplastin TimeImmunoglobulin MMeningismHydroxychloroquineEnzyme-Linked Immunosorbent AssayBlue Toe SyndromeAdrenal InsufficiencyThromboplastinLupus Vasculitis, Central Nervous SystemCopying ProcessesAnnexin A2PhospholipidsThrombophlebitisAutoimmune DiseasesAnnexin A5Heart Valve DiseasesHeparin, Low-Molecular-WeightAspirinPhosphatidylserinesEndocarditisBlood Coagulation FactorsAntibodies, MonoclonalInfarctionPuerperal DisordersRisk FactorsAntibodies, Antinuclear