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LaboratoriesClinical Laboratory TechniquesLaboratories, HospitalAnimals, LaboratorySensitivity and SpecificityDiagnostic ErrorsMedical Laboratory PersonnelDiagnostic Tests, RoutineDiagnostic Techniques and ProceduresDiagnostic ImagingReagent Kits, DiagnosticReproducibility of ResultsClinical Laboratory Information SystemsMolecular Diagnostic TechniquesPredictive Value of TestsQuality ControlLaboratory PersonnelDiagnostic ServicesLaboratory Proficiency TestingROC CurveRetrospective StudiesChemistry, ClinicalPolymerase Chain ReactionLaboratory Animal ScienceSpecimen HandlingDiagnostic and Statistical Manual of Mental DisordersEvaluation Studies as TopicProspective StudiesTime FactorsMedical Laboratory ScienceFalse Positive ReactionsBiological MarkersTomography, X-Ray ComputedClinical Laboratory ServicesPathology, ClinicalBiopsyDiagnosisReference StandardsImmunoassayPoint-of-Care SystemsMicrobiologyFalse Negative ReactionsEnzyme-Linked Immunosorbent AssayParasitologySerologic TestsLaboratories, DentalMicroscopyMagnetic Resonance ImagingObserver VariationAlgorithmsPrognosisDiagnosis, Computer-AssistedSeverity of Illness IndexUnited StatesClinical Chemistry TestsPrevalenceRisk FactorsInfant, NewbornTreatment OutcomeMicrobiological TechniquesTumor Markers, BiologicalBiopsy, NeedleHematologic TestsFollow-Up StudiesMolecular Sequence DataVirologyPathologyFecesEarly DiagnosisSequence Analysis, DNAReference ValuesBacteriologyImmunologic TestsPhysical ExaminationPregnancyBlood Chemical AnalysisUltrasonographyMass ScreeningCohort StudiesAcute DiseaseCase-Control StudiesSpecies SpecificityAutomation, LaboratoryCulture MediaDisease OutbreaksQuality Assurance, Health CareDNA, BacterialImmunoenzyme TechniquesQuestionnairesMicrobial Sensitivity TestsReagent StripsContrast MediaContainment of BiohazardsCross-Sectional StudiesDiagnostic EquipmentAge FactorsDiagnostic Techniques, Digestive SystemIncidenceGenetic TestingHematology