Updates are available Correction dated 2018-09-22

Article History

First Online: 24 August 2018

Change Date: 22 September 2018

Change Type: Correction

Change Details: An Online First version of this article was made available online at http://link.springer.com/journal/40263/onlineFirst/page/1 on 24 August 2018. An error was subsequently identified in the article, and the following correction should be noted:

Compliance with Ethical Standards

:

: This study was funded by Biogen, who provided funding for medical writing support in the development of this manuscript. The open access fee for this article was funded by Biogen.

: Mark Gudesblatt has received research support from Biogen, EMD Serono, Novartis, Sanofi-Genzyme, and Teva, and speaker/consultant fees from Acorda, Amgen, Biogen, EMD-Serono, Medtronic, Novartis, Sanofi-Genzyme, Saol Therapeutics, and Teva. Myassar Zarif has received speaker fees from Acorda, Biogen, Genzyme, and Teva. Barbara Bumstead has received speaker fees from Biogen, Genentech, Genzyme, and Teva. Jeffrey Wilken has received grants from Biogen and grants and personal fees from Sanofi-Genzyme and George Washington University. Karen Blitz has received speaker fees from Biogen, Genentech, and Teva. Marijean Buhse has received speaker/consultant fees from Biogen, Genentech, and Sanofi-Genzyme. Sourav Santra, Christophe Hotermans, and Lily Lee are employed by and may hold stock and/or stock options in Biogen. Karl Wissemann and Lori Fafard have no conflicts of interest to disclose.

: A waiver of informed consent was obtained from the Institutional Review Board on the basis of non–personally-identifiable retrospective data collection and minimal risk.