Galetta Steven L, Digre Kathleen B
From the Departments of Neurology and Ophthalmology (S.L.G.), New York University School of Medicine, New York; and the Departments of Neurology and Ophthalmology (K.B.D.), University of Utah School of Medicine, Salt Lake City.
Neurology. 2016 Jan 26;86(4):318-9. doi: 10.1212/WNL.0000000000002320. Epub 2015 Dec 30.