Patient Outcome AssessmentOutcome Assessment (Health Care)Treatment OutcomeInformation SystemsQuality of LifeDisability EvaluationPsychometricsReproducibility of ResultsInjections, EpiduralQuestionnairesResearch DesignOutcome and Process Assessment (Health Care)Attention Deficit and Disruptive Behavior DisordersNational Institutes of Health (U.S.)United StatesProspective StudiesFollow-Up StudiesArylamine N-AcetyltransferaseRisk AssessmentPatient SatisfactionRandomized Controlled Trials as TopicTime FactorsSeverity of Illness IndexWeights and MeasuresSelf DisclosureEmpirical ResearchFluoroscopyPain MeasurementActivities of Daily LivingSpinal StenosisChronic DiseaseRecovery of FunctionSingle-Blind MethodClinical Trials as TopicPredictive Value of TestsHealth Status IndicatorsIntervertebral Disc DisplacementCohort StudiesDiagnostic Self EvaluationRisk FactorsPrognosisPhysical Therapy ModalitiesEducational MeasurementLow Back PainStrokeLumbosacral RegionSelf ReportEvidence-Based MedicinePregnancy OutcomeRange of Motion, Articular