Abstract

Get full access to this article
View all access options for this article.
References
1.
Goodin
DS
Reder
AT
Ebers
GC
. Survival in MS: a randomized cohort study 21 years after the start of the pivotal IFNβ-1b trial . Neurology 2012 ; 78 : 1315 –22 .
2.IFNB Multiple Sclerosis Study Group . Interferon -1b is effective in relapsing-remitting multiple sclerosis. I: clinical results of a multicenter, randomized, double-blind, placebo-controlled trial . Neurology 1993 ; 43 : 655 –661 .
3.
Boggild
M
Palace
J
Barton
P
. Multiple sclerosis risk sharing scheme: two year results of clinical cohort with a historical comparator . BMJ 2009 ; 339 : b4677 .
4.
Scolding
N
The multiple sclerosis risk sharing scheme . BMJ 2010 ; 340 : c2882 .
5.
Scalfari
A
Neuhaus
A
Degenhardt
A
. The natural history of multiple sclerosis: A geographically based study 10. Relapses and long-term disability . Brain 2010 ; 133 : 1914 –29 .
