PainPain MeasurementPain, PostoperativePain ManagementChronic PainPain ThresholdLow Back PainBack PainVisual Analog ScalePain, IntractableNeck PainAbdominal PainPain PerceptionFacial PainPelvic PainTreatment OutcomeDouble-Blind MethodAcute PainShoulder PainAnalgesics, OpioidQuestionnairesAnalgesicsMusculoskeletal PainPain, ReferredAnesthetics, LocalQuality of LifeSeverity of Illness IndexProspective StudiesDisability EvaluationAnalgesiaReproducibility of ResultsLidocaineTime FactorsNociceptive PainChronic DiseaseAnalgesia, Patient-ControlledNeuralgiaPsychometricsMyofascial Pain SyndromesArthralgiaFibromyalgiaMorphineAnalgesia, EpiduralInjections, Intra-ArticularFollow-Up StudiesPatient SatisfactionAnesthesia, LocalPruritusSingle-Blind MethodTramadolCross-Over StudiesRange of Motion, ArticularIntervertebral Disc DisplacementStructure-Activity RelationshipOsteoarthritis, KneePsychiatric Status Rating ScalesLabor PainBupivacaineNerve BlockVertebroplastyAnalgesics, Non-NarcoticRadiculopathyFatigueLumbar VertebraeAnalysis of VarianceAcupuncture AnalgesiaRecovery of FunctionTranscutaneous Electric Nerve StimulationFentanylHyperalgesiaActivities of Daily LivingSpinal FusionAnti-Inflammatory Agents, Non-SteroidalDiskectomyKetorolacPilot ProjectsAnxietyDose-Response Relationship, DrugStatistics, NonparametricExercise TherapyMeperidinePhysical Therapy ModalitiesAnalgesia, ObstetricalMolar, ThirdMolecular StructureHealth Status IndicatorsKnee JointPrilocaineAnesthesia, DentalSpinal FracturesOutcome Assessment (Health Care)Complex Regional Pain SyndromesSpinal StenosisFractures, CompressionVisceral PainAcupuncture TherapyHealth StatusRetrospective StudiesTooth ExtractionManifest Anxiety Scale