%0 Journal Article %A Ralf Gold %A Reinhard Hohlfeld %T Multiple sclerosis therapy: new agents carry new risks %D 2006 %R 10.1136/jnnp.2006.097873 %J Practical Neurology %P 248-251 %V 6 %N 4 %U https://pn.bmj.com/content/practneurol/6/4/248.full.pdf