PainPain, PostoperativeTreatment OutcomeChronic PainPain ManagementPain ThresholdLow Back PainBack PainNeoplasm, ResidualPain MeasurementAbdominal PainNeck PainPain, IntractablePelvic PainPain PerceptionFacial PainAcute PainPain, ReferredShoulder PainMusculoskeletal PainAnalgesicsNociceptive PainNeuralgiaAnalgesics, OpioidFunctional Residual CapacityResidual VolumeChronic DiseaseMyofascial Pain SyndromesHyperalgesiaComplex Regional Pain SyndromesVisceral PainArthralgiaTime FactorsAnalgesiaLabor PainProspective StudiesFollow-Up StudiesNociceptorsQuestionnairesAnesthetics, LocalDisability EvaluationFibromyalgiaRetrospective StudiesCatastrophizationSeverity of Illness IndexFlank PainDouble-Blind MethodEye PainMorphineAnalgesics, Non-NarcoticInjections, SpinalPhantom LimbQuality of LifeNerve BlockLidocaineMagnetic Resonance ImagingRecurrenceSciaticaToothacheReproducibility of ResultsRange of Motion, ArticularOsteoarthritis, KneeHot TemperatureAnalysis of VarianceKnee JointPhysical Therapy ModalitiesTomography, X-Ray ComputedNociceptionRadiculopathyPredictive Value of TestsRisk FactorsPeripheral Nervous System DiseasesSpinal NervesPrognosisSpinal CordMusculoskeletal DiseasesAcute DiseaseTrigeminal NeuralgiaTemporomandibular Joint DisordersLumbosacral RegionSensitivity and SpecificityPostoperative ComplicationsIntervertebral Disc DisplacementAmputation StumpsCross-Sectional StudiesRats, Sprague-DawleyTranscutaneous Electric Nerve StimulationBupivacaineAcupuncture AnalgesiaTramadolCombined Modality TherapyAnti-Inflammatory Agents, Non-SteroidalOxycodoneRecovery of FunctionHeadachePrevalenceCohort StudiesCyclohexanecarboxylic AcidsActivities of Daily LivingOsteoarthritis