Helmchen Christoph, Machner Björn, Lehnen Nadine, Jahn Klaus, Schneider Erich, Sprenger Andreas
Department of Neurology, University Hospitals Schleswig-Holstein, University of Lübeck, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany,
J Neurol. 2014 Aug;261(8):1638-40. doi: 10.1007/s00415-014-7405-9. Epub 2014 Jun 13.