- Correspondence to Dr Janja Pretnar-Oblak, Ljubljana Medical Centre, Department of Neurology, Zaloska 7, 1000 Ljubljana, Slovenia;
- Received 28 November 2008
- Revised 7 May 2009
- Accepted 12 May 2009
- Published in print 1 August 2010.
- Published online 3 August 2010.
- Published first 20 June 2010.
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