Antibodies, AnticardiolipinCardiolipinsAntiphospholipid SyndromeLupus Coagulation Inhibitorbeta 2-Glycoprotein IAntibodies, AntiphospholipidLupus Erythematosus, SystemicAutoantibodiesAbortion, HabitualImmunoglobulin GImmunoglobulin MThrombosisBlood Coagulation FactorsGlycoproteinsAntibodies, AntinuclearEnzyme-Linked Immunosorbent AssayThrombophiliaProthrombinBlood Coagulation TestsImmunoglobulin IsotypesLupus Vasculitis, Central Nervous SystemActivated Protein C ResistancePartial Thromboplastin TimeProtein S DeficiencyPregnancy Complications, HematologicThrombocytopeniaLeg UlcerPregnancyCalciphylaxisAbortion, SpontaneousPregnancy ComplicationsVenous ThrombosisAnticoagulantsProtein CAntibody SpecificityFetal DeathProspective StudiesAutoimmune DiseasesPrednisolonePhospholipidsAntibodiesImmunoglobulin AFactor VBehcet SyndromeCase-Control StudiesCerebral InfarctionCerebrovascular DisordersBiological Markers