Josephs Keith A, Nelson Peter T
From the Department of Neurology (K.A.J.), Mayo Clinic, Rochester, MN; and Department of Pathology (P.T.N.), University of Kentucky, Lexington.
Neurology. 2015 Mar 3;84(9):870-1. doi: 10.1212/WNL.0000000000001322. Epub 2015 Feb 4.