Costs and Cost AnalysisCost-Benefit AnalysisHealth Care CostsQuality-Adjusted Life YearsModels, EconomicDrug CostsCost of IllnessHospital CostsCost SavingsDirect Service CostsModels, EconometricIntervention StudiesBones of Lower ExtremityDisposable EquipmentCost ControlPhysicians' OfficesTreatment OutcomeRetrospective StudiesLength of StayHealth ResourcesUnited StatesDecision TreesNebraskaCost SharingAmbulatory Surgical ProceduresCost AllocationHospitalizationHospitals, UniversityProgram EvaluationProspective StudiesTime FactorsHealth Services ResearchOutcome Assessment (Health Care)Great BritainRandomized Controlled Trials as TopicAmbulatory CareMass ScreeningQuestionnairesFollow-Up StudiesInsecticidesDiagnosis-Related GroupsPregnancyHealth PromotionSensitivity and SpecificityNational Health ProgramsEarly Medical InterventionHealth EducationEmployer Health Costs