Olesen J, Gustavsson A, Svensson M, Wittchen H-U, Jönsson B. The economic cost of brain disorders in Europe. European Journal of Neurology [Internet]. 2012;19(1):155 - 162. http://doi.wiley.com/10.1111/ene.2011.19.issue-1http://doi.wiley.com/10.1111/j.1468-1331.2011.03590.x