Utility of topiramate for the treatment of patients with chronic migraine in the presence or absence of acute medication overuse

H. C. Diener, D. W. Dodick, P. J. Goadsby, M. E. Bigal, G. Bussone, S. D. Silberstein, N. Mathew, S. Ascher, J. Morein, J. F. Hulihan, D. M. Biondi, S. J. Greenberg