Total Quality ManagementQuality-Adjusted Life YearsChemistry, ClinicalLaboratoriesQuality ControlQuality of LifeCost-Benefit AnalysisMarkov ChainsModels, EconomicValue of LifeCost of IllnessQuality of Health CareLife ExpectancyModels, EconometricQuality Assurance, Health CareDecision Support TechniquesDrug CostsQuality Indicators, Health CareDecision TreesDisabled PersonsQuestionnairesTreatment OutcomeCosts and Cost AnalysisLifeHealth StatusHealth ResourcesQuality ImprovementMass ScreeningUnited StatesOutcome Assessment (Health Care)Great BritainCost SavingsHealth Status Indicators