PainChronic PainPain ManagementPain ThresholdPain, PostoperativeLow Back PainBack PainPain MeasurementAbdominal PainNeck PainPain, IntractablePelvic PainPain PerceptionFacial PainAcute PainPain, ReferredShoulder PainMusculoskeletal PainAnalgesicsNociceptive PainNeuralgiaNeedlestick InjuriesAnalgesics, OpioidMyofascial Pain SyndromesHyperalgesiaChronic DiseaseComplex Regional Pain SyndromesVisceral PainArthralgiaTreatment OutcomeAnalgesiaLabor PainNociceptorsQuestionnairesTime FactorsAnesthetics, LocalDisability EvaluationFibromyalgiaCatastrophizationProspective StudiesFlank PainSeverity of Illness IndexEye PainDouble-Blind MethodMorphineAnalgesics, Non-NarcoticFollow-Up StudiesLidocaineInjections, SpinalSciaticaToothacheHot TemperatureNerve BlockQuality of LifeNeedlesOsteoarthritis, KneeMedical Waste DisposalRange of Motion, ArticularNociceptionPhysical Therapy ModalitiesSpinal NervesPhantom LimbSpinal CordMusculoskeletal DiseasesRats, Sprague-DawleyArthrographyTrigeminal NeuralgiaTemporomandibular Joint DisordersMagnetic Resonance ImagingKnee JointRadiculopathyRetrospective StudiesPeripheral Nervous System DiseasesTranscutaneous Electric Nerve StimulationAcupuncture AnalgesiaAnalysis of VarianceTramadolIntervertebral Disc DisplacementLumbosacral RegionCross-Sectional StudiesOxycodoneCyclohexanecarboxylic AcidsBupivacaineAnti-Inflammatory Agents, Non-SteroidalReproducibility of ResultsOsteoarthritisPrevalenceOccupational DiseasesHeadacheInjections, Intra-ArticularBlood-Borne PathogensAnalgesia, Patient-ControlledActivities of Daily LivingArthritis, RheumatoidFacial NeuralgiaExercise TherapyAcute DiseaseAcupuncture TherapyGanglia, SpinalAccidents, Occupational