Chadwick, David Shared scheme for assessing drugs for multiple sclerosis: dealing with uncertainties about cost effectiveness of treatments is difficult problem. [electronic resource] - BMJ (Clinical research ed.) May 2003 - 1212-3 p. digital Publication Type: Comment; Letter ISSN: 1756-1833 Standard No.: 10.1136/bmj.326.7400.1212-a doi Subjects--Topical Terms: Azathioprine--economicsCost-Benefit AnalysisHumansImmunosuppressive Agents--economicsMultiple Sclerosis--drug therapyRisk Sharing, Financial