Factor VActivated Protein C ResistanceThrombophiliaBlood Coagulation Disorders, InheritedProthrombinVenous ThrombosisPoint MutationPregnancy Complications, HematologicProtein S DeficiencyLivedo ReticularisProtein CThrombosisHeterozygoteFactor V DeficiencyThrombophlebitisMutationThromboembolismBudd-Chiari SyndromeBlood Coagulation DisordersProtein SHomozygoteProtein C DeficiencyRisk FactorsCase-Control StudiesAnticoagulantsPolymerase Chain ReactionMethylenetetrahydrofolate Reductase (NADPH2)PregnancyMutation, MissenseBlood CoagulationAntithrombin III DeficiencyVenous ThromboembolismGenotypeRationalizationOxidoreductases Acting on CH-NH Group DonorsGenetic Predisposition to DiseaseAbortion, HabitualApolipoprotein E3Blood Coagulation Factor InhibitorsPulmonary EmbolismPartial Thromboplastin TimeGenetic TestingBlood Coagulation TestsAbruptio PlacentaeFactor VIIIFactor VaHeterozygote DetectionFrameshift MutationDNA Mutational AnalysisContraceptives, OralPolymorphism, GeneticPedigreeSkin Diseases, Vascular