Sample sizes for brain atrophy outcomes in trials for secondary progressive multiple sclerosis.
Altmann DR, Jasperse B, Barkhof F, Beckmann K, Filippi M, Kappos LD, Molyneux P, Polman CH, Pozzilli C, Thompson AJ, Wagner K, Yousry TA, Miller DH.
Altmann DR, et al.
Neurology. 2009 Feb 17;72(7):595-601. doi: 10.1212/01.wnl.0000335765.55346.fc. Epub 2008 Nov 12.
Neurology. 2009.
PMID: 19005170
Free PMC article.
Clinical Trial.