- Correspondence to Dr Frank Leypoldt, Department of Neurology, University Medical Center Eppendorf, Martinistr 52, Hamburg 20246, Germany; Dr Jan Lewerenz, Department of Neurology, Oberer Eselsberg 45, 89081 Ulm, Germany;
- Received December 6, 2011
- Revised February 7, 2012
- Accepted April 2, 2012
- First published May 7, 2012.
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