Whole Blood Coagulation TimeAnticoagulantsHeparin, Low-Molecular-WeightAcenocoumarolHeparinInjections, SubcutaneousThromboembolismHemorrhageFibrinolytic AgentsEnoxaparinInfusions, SubcutaneousVenous ThrombosisPartial Thromboplastin TimeDalteparinBleeding TimeRetinal Vein OcclusionBlood CoagulationFactor XaVenous ThromboembolismPulmonary EmbolismControlled Clinical Trials as TopicInfusions, IntravenousThrombosisAspirinDouble-Blind MethodCatheterization, Central VenousBlood Loss, SurgicalMonitoring, IntraoperativeRenal DialysisTreatment OutcomeDrug Therapy, CombinationMonitoring, PhysiologicProspective StudiesPilot ProjectsMyocardial InfarctionVascular PatencyAngioplasty, Balloon, CoronaryPlatelet Aggregation InhibitorsTime FactorsDrug Administration ScheduleNeoplasmsAcute DiseaseRecurrenceDose-Response Relationship, DrugIncidenceRisk FactorsFollow-Up StudiesEncyclopedias as Topic