- Correspondence to Dr M H Soilu-Hänninen, University Hospital of Turku, Department of Neurology, Kiinamyllynkatu 4-8, Turku FIN-20520, Finland;
- Received November 24, 2011
- Revised January 28, 2012
- Accepted January 30, 2012
- First published February 22, 2012.
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