Relationship between Sustained Disability Progression and Functional System Scores in Relapsing-Remitting Multiple Sclerosis: Analysis of Placebo Data from Four Randomized Clinical Trials.
Scott T, Wang P, You X, Mann M, Sperling B
Neuroepidemiology. 2015; 44(1):16-23. Epub 2015 Jan 23. PMID: 25634764.Abstract