Costs and Cost AnalysisHealth Care CostsCost-Benefit AnalysisDrug CostsCost of IllnessHospital CostsCost SavingsModels, EconomicDirect Service CostsModels, EconometricBones of Lower ExtremityCost ControlDisposable EquipmentPhysicians' OfficesHealth ResourcesLength of StayDecision TreesNebraskaRetrospective StudiesCost SharingUnited StatesAmbulatory Surgical ProceduresCost AllocationTreatment OutcomeHospitalizationHospitals, UniversityHealth Services ResearchAmbulatory CareGreat BritainProspective StudiesDiagnosis-Related GroupsTime FactorsInsecticidesOutcome Assessment (Health Care)National Health ProgramsMass ScreeningSensitivity and SpecificityRandomized Controlled Trials as TopicPregnancyProgram EvaluationEmployer Health CostsQuestionnairesQuality-Adjusted Life YearsFollow-Up Studies