Long-term follow-up of the original interferon-beta1b trial in multiple sclerosis: design and lessons from a 16-year observational study.
OBJECTIVE: This article describes the design of and difficulties inherent in the execution of a long-term, observational trial that sought to assess the validity of short-term measures of multiple sclerosis (MS) (eg, relapse rate, inflammatory lesions) for long-term disease outcomes. METHODS: In th...
| Autors principals: | , , , , , , , , |
|---|---|
| Format: | Journal article |
| Idioma: | English |
| Publicat: |
2009
|