- Correspondence to Prof. Paul Friedemann, Department of Neurology Charité University Medicine Berlin,Berlin,Germany; and Dr Carsten Finke, Department of Neurology, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany;
- Received July 6, 2017
- Revised October 9, 2017
- Accepted October 19, 2017
- First published November 3, 2017.
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