Cost-Benefit AnalysisCosts and Cost AnalysisHealth Care CostsDecision MakingTreatment OutcomeProspective StudiesDrug CostsCost of IllnessCost ControlCost SharingDirect Service CostsCost AllocationInsurance BenefitsModels, EconomicUnited StatesEmployer Health CostsHealth Benefit Plans, EmployeeQuality-Adjusted Life YearsTime FactorsRetrospective StudiesRandomized Controlled Trials as TopicInsurance, Pharmaceutical ServicesManaged Care ProgramsHealth Resources