Hardwick A, Rucker J C, Cohen M L, Friedland R P, Gustaw-Rothenberg K, Riley D E, Leigh R J
Department of Neurology, Veterans Affairs Medical Center, Case Western Reserve University, Cleveland, OH, USA.
Neurology. 2009 Dec 15;73(24):2122-4. doi: 10.1212/WNL.0b013e3181c67ba2.