We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleA multi-center double-blind pilot comparison of onabotulinumtoxinA and topiramate for the prophylactic treatment of chronic migraine.AuthorsCady RK; Schreiber CP; Porter JA; Blumenfeld AM; Farmer KUPublicationHeadache, 2011, Vol 51, Issue 1, p21ISSN1526-4610Publication typearticleDOI10.1111/j.1526-4610.2010.01796.x