[1] Expt & Clin Res Ctr, Berlin, Germany
[2] Max Delbruck Ctr Mol Med, Berlin, Germany
[3] Charite Univ Med Berlin, Berlin, Germany
[4] Free Univ Berlin, Berlin, Germany
[5] Humboldt Univ, Berlin, Germany
[6] Berlin Inst Hlth, Berlin, Germany
[7] Charite Univ Med Berlin, NeuroCure Clin Res Ctr, Berlin, Germany
[8] Univ Basel, Univ Basel Hosp, Dept Med, Neurol Clin & Policlin, Basel, Switzerland
[9] Univ Basel, Univ Basel Hosp, Dept Clin Res, Neurol Clin & Policlin, Basel, Switzerland
[10] Univ Basel, Univ Basel Hosp, Dept Biomed, Neurol Clin & Policlin, Basel, Switzerland
[11] Charite Univ Med Berlin, Dept Neurol, Berlin, Germany
[12] Univ Calif Irvine, Dept Neurol, Irvine, CA 92717 USA