EnoxaparinAnticoagulantsHeparinVenous ThromboembolismFactor XaHemorrhageFibrinolytic AgentsHeparin, Low-Molecular-WeightThromboembolismVenous ThrombosisInjections, SubcutaneousKiller Cells, NaturalNadroparinPartial Thromboplastin TimeThiophenesAngina, UnstablePulmonary EmbolismDalteparinDouble-Blind MethodThrombophlebitisBlood CoagulationTreatment OutcomePlatelet Glycoprotein GPIIb-IIIa ComplexTolmetinPyridonesMyocardial InfarctionDrug Therapy, CombinationAntithrombinsIntracranial Hemorrhage, TraumaticPlatelet Aggregation Inhibitors