GoodinDSRederAT. Letter to the editor. [In press] Mult Scler2012.
2.
AAN (American Academy of Neurology). Clinical practice guideline process manual. 2011 ed. St. Paul, MN: The American Academy of Neurology, 2011.
3.
SchultzKFAltmanDGMoherD. CONSORT 2010 statement: Updated guidelines for reporting parallel group randomized trials. Ann Intern Med2010; 152: 1–8.
4.
GoodinDSRederATEbersGC. Survival in MS: A randomized cohort study 21 years after the start of the pivotal INNβ-1b trial. Neurology2012; 78: 1315–1322.
5.
The IFNB Multiple Sclerosis StudyGroup. Interferon beta-1b is effective in relapsing–remittingmultiple sclerosis. I. Clinical results of a multicenter, randomized,doubleblind, placebo-controlled trial. Neurology1993; 43: 655–661.
6.
GrossRAJohnstonKC. Levels of evidence: Taking neurology to the next level. Neurology2009; 72: 8–10.
