Foerch Christian, Berkefeld Joachim, Halbsguth Alfred, Ziemann Ulf, Neumann-Haefelin Tobias
Department of Neurology, Johann Wolfgang Goethe University, Frankfurt am Main, Germany.
Cerebrovasc Dis. 2006;22(2-3):200-2. doi: 10.1159/000093808. Epub 2006 Jun 8.