Injections, EpiduralPainPain ManagementLow Back PainPain MeasurementIntervertebral Disc DisplacementFluoroscopySteroidsRadiculopathyAnesthetics, LocalChronic PainPain ThresholdPain, PostoperativeChronic DiseaseBack PainAbdominal PainNeck PainPain, IntractableTreatment OutcomePelvic PainPain PerceptionFacial PainAcute PainPain, ReferredShoulder PainMusculoskeletal PainAnalgesicsNociceptive PainNeuralgiaAnalgesics, OpioidMyofascial Pain SyndromesHyperalgesiaComplex Regional Pain SyndromesVisceral PainArthralgiaAnalgesiaLabor PainNociceptorsFibromyalgiaQuestionnairesDisability EvaluationCatastrophizationFlank PainEye PainProspective StudiesMorphineDouble-Blind MethodAnalgesics, Non-NarcoticSeverity of Illness IndexInjections, SpinalSciaticaToothacheLidocaineNerve BlockOsteoarthritis, KneeTime FactorsQuality of LifeFollow-Up StudiesNociceptionPhysical Therapy ModalitiesSpinal NervesPhantom LimbMusculoskeletal DiseasesTrigeminal NeuralgiaTemporomandibular Joint DisordersKnee JointRange of Motion, ArticularPeripheral Nervous System DiseasesSpinal CordTranscutaneous Electric Nerve StimulationAcupuncture AnalgesiaTramadolLumbosacral RegionOxycodoneCyclohexanecarboxylic AcidsBupivacaineAnti-Inflammatory Agents, Non-SteroidalHot TemperatureOsteoarthritisHeadacheInjections, Intra-ArticularRetrospective StudiesAnalgesia, Patient-ControlledActivities of Daily LivingFacial NeuralgiaExercise TherapyAcupuncture TherapyMagnetic Resonance ImagingCross-Sectional StudiesGanglia, SpinalPalliative CareRats, Sprague-DawleyFentanylAnalysis of VarianceZygapophyseal JointAnesthesia, LocalPosterior Horn CellsHypesthesiaAnxietyAcute Disease