NaproxenPainPain MeasurementPain ManagementPain, PostoperativeAnti-Inflammatory Agents, Non-SteroidalPain, IntractableChronic PainMedication ErrorsMedication AdherenceAnalgesicsAnalgesics, OpioidLow Back PainDouble-Blind MethodBack PainTreatment OutcomePain ThresholdAnalgesiaIbuprofenAnesthetics, LocalAbdominal PainNeck PainLabor PainCyclooxygenase InhibitorsDiclofenacFacial PainAnalgesia, ObstetricalPelvic PainTramadolNerve BlockAnalgesics, Non-NarcoticAcute PainBupivacaineRelief WorkAnalgesia, EpiduralMedication SystemsMedication ReconciliationMedication Systems, HospitalMorphineCyclooxygenase 2 InhibitorsPain PerceptionNeuralgiaTime FactorsProspective StudiesAnalgesia, Patient-ControlledChronic DiseaseShoulder PainTrigeminal NeuralgiaAcetaminophenNaphthaleneacetic AcidsEtodolacInjections, EpiduralMigraine DisordersOsteoarthritisDextropropoxyphenePiroxicamSulfonesPain, ReferredSumatriptanCeliac PlexusInjections, Intra-ArticularKetoprofenFollow-Up StudiesZygapophyseal JointFentanylRetrospective StudiesDrug Administration ScheduleHydromorphoneAdministration, OralRadiculopathyAcupuncture AnalgesiaPalliative CarePrescription DrugsDrug CombinationsTranscutaneous Electric Nerve StimulationInjections, SpinalMeperidineDrug Therapy, CombinationPlacebo EffectArthralgiaTryptaminesMusculoskeletal PainElectric Stimulation TherapyThromboxane B2PhenylbutazoneQuestionnairesSelf MedicationGastrointestinal DiseasesAnti-Inflammatory AgentsPatient ComplianceVertebroplasty