- Correspondence to Dr Jens Minnerup, Universitätsklinikum Münster, Klinik und Poliklinik für Neurologie, Albert-Schweitzer-Straße 33, 48149 Münster, Germany;
- Received May 3, 2009
- Revised July 4, 2009
- Accepted July 21, 2009
- First published September 2, 2009.
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