Correction to: Journal of Neurology (2018) 265:906–916 https://doi.org/10.1007/s00415-018-8792-0

The original version of this article unfortunately contained a mistake. The funding information was incorrect. The corrected funding information is given below.

This study was funded by UCB Biopharma—Investigator-Initiated Study (UCB IIS-2014-101555).