CanadaRelief WorkOntarioBritish ColumbiaAlbertaQuebecPain MeasurementPainManitobaPain, IntractableTreatment OutcomePain ManagementNova ScotiaPain, PostoperativeNorthwest TerritoriesSaskatchewanNunavutYukon TerritoryAnalgesics, OpioidNewfoundland and LabradorAnalgesicsAnesthetics, LocalDouble-Blind MethodPalliative CareNerve BlockInuitsPrince Edward IslandAnalgesia, ObstetricalTime FactorsAnalgesiaArctic RegionsLabor PainNew BrunswickRetrospective StudiesBupivacaineQuestionnairesTrigeminal NeuralgiaAnalgesia, EpiduralSingle-Payer SystemFollow-Up StudiesInjections, EpiduralChronic DiseaseZygapophyseal JointPatient SatisfactionIndians, North AmericanProspective StudiesGeeseInjections, Intra-ArticularRadiculopathyBack PainNational Health ProgramsElectric Stimulation TherapyCeliac PlexusMorphineEmigration and ImmigrationAnalgesia, Patient-ControlledRisk FactorsDisease OutbreaksPrevalenceMeperidineAnalgesics, Non-NarcoticDisastersNeuralgiaQuality of LifeTramadolLow Back PainHeartburnPostoperative ComplicationsChronic PainIncidenceAge FactorsTranscutaneous Electric Nerve StimulationInfant, NewbornPhysiciansAustraliaEarthquakesAcupuncture AnalgesiaNorth AmericaPopulation SurveillanceInternational CooperationData CollectionAnti-Inflammatory Agents, Non-SteroidalEmigrants and ImmigrantsLidocainePregnancyClinical Trials as TopicFentanylHydromorphoneHealth Services AccessibilityRandomized Controlled Trials as TopicPhysician's Practice PatternsInjections, SpinalAcupuncture TherapySeverity of Illness IndexTryptaminesLumbar VertebraeCohort Studies