Spanish multi-centre observational study of the first attacks suggestive of multiple sclerosis: The PREM cohort

1. Sastre-Garriga, J.
2. Rovira, A.
3. Bonaventura, I.
4. Escudero-Torrella, J.
5. Marco-Igual, M.
6. Aymerich, X.
7. de Andrés, C.
8. Lacruz, F.
9. Escartín, A.
10. Olascoaga, J.
11. Solar, D.
12. Farrés, J.
13. Arroyo-González, R.
14. Montalban, X.