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United StatesLaboratoriesNational Institutes of Health (U.S.)Laboratories, HospitalClinical Laboratory TechniquesAnimals, LaboratoryNational Health ProgramsMedical Laboratory PersonnelNational Library of Medicine (U.S.)Clinical Laboratory Information SystemsHealth PolicyQuality Assurance, Health CareNational Cancer Institute (U.S.)Risk FactorsProgram EvaluationQuality ControlInternational CooperationData CollectionPopulation SurveillancePrevalenceProgram DevelopmentGreat BritainHealth SurveysQuestionnairesHealth PromotionTime FactorsCross-Sectional StudiesNational Center for Health Statistics (U.S.)Cooperative BehaviorPractice Guidelines as TopicPublic HealthLaboratory PersonnelCanadaReproducibility of ResultsIncidenceDatabases, FactualRetrospective StudiesQuality ImprovementWorld HealthFoundationsResearchBiomedical ResearchWomen's HealthAge FactorsMedical Laboratory ScienceCohort StudiesHealth Care SurveysInfant, NewbornNational Heart, Lung, and Blood Institute (U.S.)Delivery of Health CareWorld Health OrganizationNutrition SurveysRegistriesLaboratory Proficiency TestingLaboratory Animal ScienceSensitivity and SpecificityDeveloping CountriesState MedicineHealth Services AccessibilityAcademies and InstitutesChemistry, ClinicalFinancing, OrganizedInterinstitutional RelationsTreatment OutcomeQuality of Health CareHealth Services ResearchCenters for Disease Control and Prevention (U.S.)Prospective StudiesGuidelines as TopicGuideline AdherenceResearch Support as TopicRisk AssessmentSex FactorsEnglandNational Institute for Occupational Safety and Health (U.S.)PoliticsOrganizational ObjectivesModels, OrganizationalConsumer ParticipationOrganizational Case StudiesLogistic ModelsEvaluation Studies as TopicInterviews as TopicPhysician's Practice PatternsHistory, 20th CenturyMass ScreeningFinancing, GovernmentAustraliaMicrobiologyFollow-Up StudiesPublic PolicyInternationalityLeadershipCommunity Health ServicesEuropeReference StandardsSocieties, MedicalPregnancyNational Academy of Sciences (U.S.)Community Networks