Beecher Grayson, Wagner Amanda Nicole, Abele Jonathan, Smyth Penelope
From the Department of Medicine (Neurology) (G.B., A.N.W., P.S.) and Department of Radiology & Diagnostic Imaging (J.A.), University of Alberta, Edmonton, Canada.
Neurology. 2018 May 29;90(22):e2012-e2013. doi: 10.1212/WNL.0000000000005611.