ResearchResearch DesignResearch Support as TopicEthics, ResearchResearch PersonnelHealth Services ResearchNursing ResearchTreatment OutcomeTranslational Medical ResearchUnited StatesGenetic ResearchRetrospective StudiesQuestionnairesBehavioral ResearchTime FactorsQualitative ResearchRisk FactorsProspective StudiesInformed ConsentClinical Nursing ResearchHuman ExperimentationReproducibility of ResultsClinical Trials as TopicCommunity-Based Participatory ResearchNeoplasmsHistory, 20th CenturyQuality of LifeDental ResearchSeverity of Illness IndexFollow-Up StudiesOutcome Assessment (Health Care)Risk AssessmentEmpirical ResearchData CollectionGreat BritainPatient SelectionRandomized Controlled Trials as TopicNational Institutes of Health (U.S.)Cohort StudiesEmbryo ResearchAge FactorsDatabases, FactualCross-Sectional StudiesNontherapeutic Human ExperimentationAcademies and InstitutesCooperative BehaviorPrognosisChronic DiseaseSex FactorsInternetHistory, 21st CenturyCost of IllnessPatient SatisfactionRegistriesEuropeSocioeconomic FactorsBiological Specimen BanksAttitude to HealthIncidenceInterviews as TopicPublic HealthInformation DisseminationAttitude of Health PersonnelPsychometricsPublishingBiomedical ResearchCanadaPractice Guidelines as TopicStem Cell ResearchSensitivity and SpecificityDelivery of Health CareBibliometricsMental DisordersProgram EvaluationComorbidityInternational CooperationUnited States Agency for Healthcare Research and QualityUniversitiesPeriodicals as TopicSurvival AnalysisGuidelines as TopicPredictive Value of TestsLogistic ModelsHealth Knowledge, Attitudes, PracticeHealth PolicyLongitudinal StudiesPublicationsPublic PolicyCommunicationCost-Benefit AnalysisQuality of Health CareHealth StatusPostoperative ComplicationsPatient ParticipationCase-Control StudiesResearch ReportAnalysis of VariancePain MeasurementPatientsTherapeutic Human Experimentation