- Correspondence to Anne Pavy-Le Traon, MSA Reference Center, Department of Neurology, University Hospital of Toulouse, Hospital Pierre-Paul Riquet, Place du Dr Baylac, Toulouse 31900, France;
- Received 7 December 2014
- Revised 15 April 2015
- Accepted 21 April 2015
- Published in print 1 May 2016.
- Published online 14 April 2016.
- Published first 14 May 2015.
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