Abstract
The article OnabotulinumtoxinA: A Review in the Prevention of Chronic Migraine, written by James E. Frampton and Stephen Silberstein, was originally published Online First without open access. After publication in volume 78, issue 5, pages 589–600, Allergan plc requested that the article be Open Choice to make the article an open access publication. Post-publication open access was funded by Allergan plc. This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/ ), which permits any noncommercial use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.