Spera Kristyn M, Doughty Christopher T, Prasad Sashank
From the Department of Neurology (K.M.S., C.T.D.), Massachusetts General Hospital; and Department of Neurology (K.M.S., C.T.D., S.P.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA.
Neurology. 2018 Apr 3;90(14):e1267-e1270. doi: 10.1212/WNL.0000000000005260.