%0 Journal Article %T Bimonthly Evolution of Cortical Atrophy in Early Relapsing-Remitting Multiple Sclerosis over 2 Years: A Longitudinal Study %A Robert Zivadinov %A Carmen Tekwe %A Niels Bergsland %A Ondrej Dolezal %J Multiple Sclerosis International %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/231345 %U http://dx.doi.org/10.1155/2013/231345