Kinkel, R Philip IM interferon beta-1a delays definite multiple sclerosis 5 years after a first demyelinating event. [electronic resource] - Neurology Mar 2006 - 678-84 p. digital Publication Type: Controlled Clinical Trial; Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't ISSN: 1526-632X Standard No.: 10.1212/01.wnl.0000200778.65597.ae doi Subjects--Topical Terms: Adjuvants, Immunologic--therapeutic useDemyelinating Diseases--drug therapyFollow-Up StudiesHumansInterferon beta-1aInterferon-beta--therapeutic useMultiple Sclerosis--classificationRecurrenceRegression AnalysisTime FactorsTreatment Outcome