Interferon beta-1b in secondary progressive MS: a combined analysis of the two trials.
Kappos L, Weinshenker B, Pozzilli C, Thompson AJ, Dahlke F, Beckmann K, Polman C, McFarland H; European (EU-SPMS) Interferon beta-1b in Secondary Progressive Multiple Sclerosis Trial Steering Committee and Independent Advisory Board; North American (NA-SPMS) Interferon beta-1b in Secondary Progressive Multiple Sclerosis Trial Steering Committee and Independent Advisory Board.
Kappos L, et al.
Neurology. 2004 Nov 23;63(10):1779-87. doi: 10.1212/01.wnl.0000145561.08973.4f.
Neurology. 2004.
PMID: 15557490