EnoxaparinAnticoagulantsHeparinVenous ThromboembolismFactor XaHemorrhageFibrinolytic AgentsHeparin, Low-Molecular-WeightInjections, SubcutaneousThromboembolismVenous ThrombosisNadroparinPartial Thromboplastin TimeDouble-Blind MethodThiophenesTreatment OutcomeAngina, UnstablePulmonary EmbolismDalteparinBlood CoagulationThrombophlebitisDrug Therapy, CombinationPlatelet Glycoprotein GPIIb-IIIa ComplexTolmetinPyridonesMyocardial InfarctionDrug Administration ScheduleAdministration, OralAntithrombinsIntracranial Hemorrhage, TraumaticPlatelet Aggregation Inhibitors