About the Authors

Constanze Jugel

Affiliation Department of Neurology, Charité - University Medicine, Campus Benjamin Franklin, Berlin, Germany

Felicitas Ehlen

Affiliation Department of Neurology, Charité - University Medicine, Campus Benjamin Franklin, Berlin, Germany

Birol Taskin

Affiliation Department of Neurology, Charité - University Medicine, Campus Benjamin Franklin, Berlin, Germany

Frank Marzinzik

Affiliation Department of Neurology, Charité - University Medicine, Campus Benjamin Franklin, Berlin, Germany

Thomas Müller

Affiliation Department of Neurology, St. Joseph-Hospital, Berlin-Weissensee, Germany

Fabian Klostermann

fabian.klostermann@charite.de

Affiliation Department of Neurology, Charité - University Medicine, Campus Benjamin Franklin, Berlin, Germany

Competing Interests

Thomas Müller received honoraria for advisory activities from Orion, GSK, Merck Serono, Lundbeck, Teva, Meda, Boehringer and Abbott. Fabian Klostermann received honoraria for advisory activities from Archimedes, UCB, and Abbott, and holds grants from the German Research Foundation (Kl 1276/4 and Kl 1276/5). All funds are unrelated to the present study. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: CJ FK. Performed the experiments: CJ BT. Analyzed the data: CJ FE FM TM FK. Contributed reagents/materials/analysis tools: FK. Wrote the paper: CJ FK.