Acute PainPainPain ManagementPain MeasurementPain, PostoperativePain ClinicsPain ThresholdChronic PainAnalgesicsAnalgesics, OpioidAnalgesiaPain, IntractablePain PerceptionAcute DiseaseAnesthesia Department, HospitalFacial PainLow Back PainBack PainHyperalgesiaDisease ManagementAbdominal PainNeuralgiaNeck PainAnalgesics, Non-NarcoticAnalgesia, Patient-ControlledPelvic PainUnited States Department of DefenseNociceptorsTreatment OutcomeMorphineChronic DiseasePain, ReferredRecovery RoomToothacheShoulder PainAcupunctureCase ManagementMusculoskeletal PainPatient Care ManagementAnesthetics, LocalAnti-Inflammatory Agents, Non-SteroidalInjections, SpinalKetoprofenCyclohexanecarboxylic AcidsHot TemperatureQuestionnairesDiclofenacAnesthesiologyAnalgesia, EpiduralCryingProspective StudiesTime FactorsNarcotic AntagonistsKetorolacFormaldehydeKetamineAcetaminophenTranscutaneous Electric Nerve StimulationRisk ManagementDouble-Blind MethodSkin Physiological PhenomenaLidocaineGanglia, SpinalSeverity of Illness IndexBehavior, AnimalCapsaicinNociceptive PainBuprenorphineSpinal CordPeripheral Nervous System DiseasesHerpes ZosterAnemia, Sickle CellDexmedetomidineAnesthetics, DissociativeNerve BlockCarrageenanRetrospective StudiesAminesInfant BehaviorEmergency Service, HospitalPosterior Horn CellsCold TemperatureRats, Sprague-DawleyPhysical StimulationInflammationPractice Guidelines as TopicMyofascial Pain SyndromesFollow-Up StudiesNaloxoneUnited StatesDose-Response Relationship, DrugInformation ManagementDisease Models, AnimalWounds and InjuriesQuality of Health CareComplex Regional Pain SyndromesMagnetic Resonance ImagingVisceral PainTRPV Cation ChannelsArthralgia