Heparin, Low-Molecular-WeightDalteparinAnticoagulantsNadroparinEnoxaparinHeparinMolecular WeightHeparin AntagonistsFactor XaHeparin LyaseThrombin TimeVenous ThrombosisPartial Thromboplastin TimeAntithrombinsVenous ThromboembolismBlood CoagulationFibrinolytic AgentsInjections, SubcutaneousHemorrhageThromboembolismThrombophlebitisAntithrombin IIIPulmonary EmbolismThrombosisAntithrombin ProteinsBody WeightAcenocoumarolHeparin Cofactor IIPolysaccharidesDermatan SulfateThrombinGlycosaminoglycansWarfarinFactor IXaHirudinsWhole Blood Coagulation TimeAngina, UnstableThrombophiliaTreatment OutcomeAspirinWeight LossThrombocytopeniaBandagesBlood Coagulation TestsWeight GainStockings, CompressionPlatelet Aggregation InhibitorsDose-Response Relationship, DrugKineticsProtaminesProthrombin TimeDextransPostoperative ComplicationsTime FactorsPregnancy Complications, CardiovascularAlloysOligosaccharidesProspective StudiesFibrinProthrombinFibrin Fibrinogen Degradation ProductsHeparitin SulfateOrthopedicsAntiphospholipid SyndromeCapsulesElectrophoresis, Polyacrylamide GelBlood Loss, SurgicalRecurrenceChromatography, GelAdministration, CutaneousProtein BindingHeart Valve ProlapseBirth WeightDrug Therapy, CombinationDouble-Blind MethodPlatelet Glycoprotein GPIIb-IIIa ComplexPregnancyGelatinAcute DiseaseAdministration, OralMyocardial InfarctionParticle SizeInfusions, IntravenousAmino Acid SequenceNeoplasmsRandom AllocationChromatography, AffinityPlatelet AggregationThrombolytic TherapyMolecular Sequence DataBlood PlateletsPlacebosRandomized Controlled Trials as TopicAmino AcidsPlatelet Factor 4Risk FactorsCattleDrug Administration ScheduleRats, Sprague-DawleyDisease Models, Animal