Wong-Kisiel L C, Ji T, Renaud D L, Kotagal S, Patterson M C, Dalmau J, Mack K J
Department of Neurology and Pediatrics, Mayo Clinic Foundation and College of Medicine, Rochester, MN 55905,USA.
Neurology. 2010 May 11;74(19):1550-1. doi: 10.1212/WNL.0b013e3181dd41a1.