PainPain MeasurementPain ManagementPain, PostoperativeChronic PainAnalgesics, OpioidPain, IntractableBack PainAnalgesicsFacial PainPain ThresholdBrachial Plexus NeuritisOxycodoneLow Back PainMorphineTramadolAnalgesiaAbdominal PainNeck PainNeuralgiaPelvic PainTreatment OutcomePain PerceptionSeverity of Illness IndexChronic DiseaseAnesthetics, LocalAcute PainPain, ReferredProspective StudiesHemorrhoidsLidocaineReflex Sympathetic DystrophyFentanylShoulder PainDouble-Blind MethodFollow-Up StudiesHyperalgesiaAnalgesics, Non-NarcoticMusculoskeletal PainAnesthesia, LocalQuestionnairesTime FactorsDrug TolerancePalliative CareVertebroplastyMiddle EastAnalgesia, Patient-ControlledNerve BlockDisability EvaluationReceptors, Opioid, muFractures, CompressionSacrumOpioid-Related DisordersRetrospective StudiesCross-Sectional StudiesOsteoarthritis, KneeHerpes ZosterRange of Motion, ArticularNociceptive PainSpinal FracturesNeoplasmsSpinal NeoplasmsOsteoarthritisPrevalenceBone NeoplasmsArthroplasty, Replacement, KneeAnemia, Sickle CellKnee JointQuality of LifeAcute DiseaseAnti-Inflammatory Agents, Non-SteroidalInjections, IntravenousAge FactorsCohort StudiesRisk FactorsMyofascial Pain SyndromesTomography, X-Ray ComputedPostoperative ComplicationsComplex Regional Pain SyndromesVisceral PainDose-Response Relationship, DrugArthralgiaLongitudinal StudiesLogistic ModelsLabor PainNociceptorsSocioeconomic FactorsPatient SatisfactionFibromyalgiaCatastrophizationFlank PainEye PainReproducibility of ResultsAnalysis of VarianceInjections, SpinalSciaticaMagnetic Resonance ImagingToothachePhysical Therapy ModalitiesMusculoskeletal Diseases