Author J. Ryan M. Peterson A. Matthews N. Ryan K. Smith N. O\textquoterightConnell S. Liverani N. Anokye C. Victor E. Allen Year of Publication 2019 DOI 10.1212/wnl.0000000000008199 DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS