Sullivan, W Economic evaluation in chronic pain: a systematic review and de novo flexible economic model. [electronic resource] - The European journal of health economics : HEPAC : health economics in prevention and care Jul 2016 - 755-70 p. digital Publication Type: Journal Article; Review; Systematic Review ISSN: 1618-7601 Standard No.: 10.1007/s10198-015-0720-y doi Subjects--Topical Terms: Analgesics--adverse effectsChronic Pain--economicsCost-Benefit AnalysisHumansModels, EconometricNarcotics--adverse effectsQuality-Adjusted Life Years