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de Havenon A, Haynor DR, Tirschwell DL, Majersik JJ, Smith G, Cohen W, Andre JB.de Havenon A, et al.JAMA Neurol. 2017 Apr 1;74(4):453-458. doi: 10.1001/jamaneurol.2016.4491.JAMA Neurol. 2017.PMID: 28192548Free PMC article.