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Reference StandardsSensitivity and SpecificityQuality of LifeReproducibility of ResultsQuality ControlObserver VariationReference ValuesQuality of Health CareDiagnostic Techniques and ProceduresQuality Assurance, Health CarePredictive Value of TestsTomography, X-Ray ComputedROC CurveDiagnostic Tests, RoutineAlgorithmsProspective StudiesQuality Indicators, Health CareRadiographic Image Interpretation, Computer-AssistedReagent Kits, DiagnosticContrast MediaClinical Laboratory TechniquesMagnetic Resonance ImagingImaging, Three-DimensionalRadiographic Image EnhancementImage Interpretation, Computer-AssistedRadiologyImage Processing, Computer-AssistedAngiography, Digital SubtractionBignoniaceaeTime FactorsQuestionnairesRetrospective StudiesImage EnhancementPolymerase Chain ReactionChromatography, High Pressure LiquidMagnetic Resonance AngiographyClinical CodingQuality ImprovementCineradiographyNatural Language ProcessingAutomationCalibrationCross-Sectional StudiesReagent StripsTreatment OutcomeUnited StatesEvaluation Studies as TopicMicroscopyPhotographyDiagnostic ErrorsSeverity of Illness IndexPoint-of-Care SystemsPhysical ExaminationResearch DesignMultidetector Computed TomographyPositron-Emission TomographyFeasibility StudiesWater QualityImmunoassayOphthalmoscopyMass ScreeningRadiopharmaceuticalsTotal Quality ManagementSoftwareDatabases, FactualX-Ray Intensifying ScreensFalse Positive ReactionsRadiochemistryUltrasonographyMolecular Diagnostic TechniquesInformation Storage and RetrievalSingle-Blind MethodMEDLINEPhantoms, ImagingEnzyme-Linked Immunosorbent AssayColonography, Computed TomographicRadiography, ThoracicStatistics, NonparametricBacteriological TechniquesInfant, NewbornSputumPattern Recognition, AutomatedMass SpectrometryMethodsCardiac-Gated Imaging TechniquesPractice Guidelines as TopicLinear ModelsArea Under CurveCohort StudiesGadolinium DTPAModels, StatisticalBiological AssayFractional Flow Reserve, MyocardialOphthalmologyParasitologyFood QualityNucleic Acid Amplification TechniquesUrinalysisPregnancySolitary Pulmonary Nodule