%0 Journal Article %T The Gap in the Current Research on the Link between Health Locus of Control and Multiple Sclerosis: Lessons and Insights from a Systematic Review %A Nicola Luigi Bragazzi %J Multiple Sclerosis International %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/972471 %U http://dx.doi.org/10.1155/2013/972471