Primary progressive multiple sclerosis diagnostic criteria: A reappraisal

1. Montalban, X.
2. Sastre-Garriga, J.
3. Filippi, M.
4. Khaleeli, Z.
5. Téllez, N.
6. Vellinga, M.
7. Tur, C.
8. Brochet, B.
9. Barkhof, F.
10. Rovaris, M.
11. Miller, D.H.
12. Polman, C.H.
13. Rovira, A.
14. Thompson, A.J.