Gumbinger Christoph, Hametner Christian, Wildemann Brigitte, Veltkamp Roland, Bösel Julian
Department of Neurology, University of Heidelberg, Heidelberg, Germany.
Neurology. 2013 May 21;80(21):1997-8. doi: 10.1212/WNL.0b013e318293e334. Epub 2013 May 1.