PainNociceptorsNeuralgiaChronic PainPain ManagementPain ThresholdPain, PostoperativeBack PainLow Back PainPain MeasurementPeripheral NervesPain, IntractableAbdominal PainNeck PainPain PerceptionPelvic PainFacial PainAcute PainPeripheral Nervous System DiseasesPain, ReferredPeripheral Nervous SystemShoulder PainPeripheral Vascular DiseasesMusculoskeletal PainAnalgesicsLeukocytes, MononuclearPeripheral Nerve InjuriesPeripheral Arterial DiseaseNociceptive PainHyperalgesiaAnalgesics, OpioidChronic DiseaseTime FactorsTreatment OutcomeLymphoma, T-Cell, PeripheralMyofascial Pain SyndromesComplex Regional Pain SyndromesVisceral PainLymphocytesT-LymphocytesAnalgesiaArthralgiaSciatic NerveCells, CulturedProspective StudiesLabor PainLymphocyte ActivationFlow CytometryPeripheral Nervous System NeoplasmsGanglia, SpinalAnesthetics, LocalSpinal CordRats, Sprague-DawleyMonocytesSeverity of Illness IndexQuestionnairesFollow-Up StudiesFibromyalgiaDouble-Blind MethodDisability EvaluationPeripheral Blood Stem Cell TransplantationDiabetic NeuropathiesBlood CellsDisease Models, AnimalSpinal NervesMorphineCatheterization, PeripheralSchwann CellsMice, Inbred C57BLNerve BlockCatastrophizationDose-Response Relationship, DrugFlank PainInjections, SpinalLeukocyte CountSciatic NeuropathyCD4-Positive T-LymphocytesSensory Receptor CellsNeural ConductionRNA, MessengerRetrospective StudiesB-LymphocytesAnalysis of VarianceEye PainNeurons, AfferentLeukocytesAnalgesics, Non-NarcoticLidocaineAntigens, CDNociceptionImmunophenotypingCytokinesAcute DiseaseSciaticaCase-Control StudiesInflammationMolecular Sequence DataRisk FactorsQuality of LifeT-Lymphocyte Subsets