Smoking and worsening disability in multiple sclerosis: A meta-analysis.
P HeydarpourA ManouchehriniaO BeikiS E MousaviA AbdolalizadehM Moradi -LakehM A SahraianPublished in: Acta neurologica Scandinavica (2018)
This meta-analysis showed smoking increased EDSS, insignificant findings were possibly due to the small number of studies, significant differences in methodologies, and variations in reporting of disability outcomes.