Pain ThresholdPainPain MeasurementPain ManagementPain PerceptionEar, ExternalHot TemperatureDiffuse Noxious Inhibitory ControlHyperalgesiaAnalgesiaAnalgesics, OpioidAnalgesicsAnalgesics, Non-NarcoticCold TemperaturePressureAlfentanilWristTranscutaneous Electric Nerve StimulationPentazocinePhysical StimulationFibromyalgiaChronic PainSensory ThresholdsElectric Stimulation TherapyCatechol O-MethyltransferasePain, PostoperativeDouble-Blind MethodLow Back PainBack PainCross-Over StudiesSex CharacteristicsNeck PainMorphineAbdominal PainPain, IntractableCapsaicinElectric StimulationPelvic PainFacial PainAcute PainPain, ReferredSkinTime FactorsShoulder PainMusculoskeletal PainModels, BiologicalNociceptive PainNeuralgiaChronic DiseaseQuestionnairesMyofascial Pain SyndromesTreatment OutcomeComplex Regional Pain SyndromesVisceral PainArthralgiaDisability EvaluationCross-Sectional StudiesLabor PainPrevalenceRisk FactorsQuality of LifeProspective StudiesActivities of Daily LivingNociceptorsSeverity of Illness IndexFollow-Up StudiesGreat BritainAnesthetics, LocalCatastrophizationSex FactorsFlank PainPhysical Therapy ModalitiesDisabled PersonsEye PainEnglandHealthy People ProgramsExercise TherapyAttitude to HealthOsteoarthritis, KneeHealth StatusGeriatric AssessmentSocioeconomic FactorsCohort StudiesUnited StatesHealth Services for the AgedRetrospective StudiesAnalysis of VarianceAdaptation, PsychologicalInterviews as TopicDepressionHealth Knowledge, Attitudes, PracticeToothachePilot ProjectsSciaticaRange of Motion, ArticularKnee JointReproducibility of ResultsInjections, SpinalMusculoskeletal DiseasesAccidental Falls