PainPain ManagementPain MeasurementPain, PostoperativePain, IntractableChronic PainLow Back PainBack PainPain ThresholdAnalgesics, OpioidAnalgesicsAbdominal PainAnesthetics, LocalNeck PainLabor PainAnalgesiaEricaceaeFacial PainAnalgesia, ObstetricalPelvic PainNerve BlockAcute PainBupivacaineAnalgesia, EpiduralTreatment OutcomeRelief WorkPain PerceptionDesert ClimateDouble-Blind MethodNeuralgiaShoulder PainAnalgesia, Patient-ControlledMorphineTrigeminal NeuralgiaInjections, EpiduralCaraganaPain, ReferredCeliac PlexusAnalgesics, Non-NarcoticTramadolInjections, Intra-ArticularZygapophyseal JointArtemisiaSalixAcupuncture AnalgesiaRadiculopathyChronic DiseaseHydromorphoneFentanylTranscutaneous Electric Nerve StimulationAmaranthaceaeSeed DispersalPalliative CareJuniperusMeperidineMediterranean RegionMusculoskeletal PainArthralgiaEcosystemInjections, SpinalElectric Stimulation TherapyVertebroplastyCausalgiaComplex Regional Pain SyndromesTreesBetulaLidocaineOpiumProspective StudiesPlant DevelopmentAnti-Inflammatory Agents, Non-SteroidalConiferophytaFractures, CompressionTime FactorsAnesthesia, EpiduralKetorolacAcetaminophenFollow-Up StudiesRange of Motion, ArticularAnesthesia, CaudalButorphanolAtriplexKetoprofenLinderaAnesthesia, LocalSpinal FracturesNociceptive PainParesthesiaHyperalgesiaFluoroscopyAngiospermsArctic RegionsPatient SatisfactionRhododendronDaphneOxycodoneFailed Back Surgery SyndromeDiclofenacIntroduced SpeciesSpinal Neoplasms