Breakthrough PainAdministration, BuccalAnalgesics, OpioidFentanylPainLabor PainPain MeasurementRespiratory Care UnitsMedication AdherencePsychotropic DrugsAnalgesicsAttention Deficit Disorder with HyperactivityAntidepressive AgentsPain ManagementAntipsychotic AgentsCentral Nervous System StimulantsTreatment OutcomeChronic PainAnalgesia, EpiduralPain, PostoperativeMedication ErrorsDepressive DisorderPain, IntractablePrescription Drug MisuseDouble-Blind MethodUnited StatesChronic DiseaseNeoplasmsPsychiatric Status Rating ScalesArthralgiaMedication ReconciliationMedication SystemsNeuralgiaMedication Systems, HospitalPalliative CareQuestionnairesProspective StudiesAnti-Inflammatory Agents, Non-SteroidalRetrospective StudiesPain ThresholdTime FactorsSeverity of Illness IndexFollow-Up StudiesRadionuclide GeneratorsPatient SatisfactionQuality of LifeLow Back PainBack PainComorbidityCohort StudiesPrescription DrugsSelf MedicationAbdominal PainDrug PrescriptionsPatient ComplianceNeck PainPolypharmacyDrug TherapyPelvic PainPain PerceptionFacial Pain