- Correspondence to Dr Hanne Marie Bøe Lunde, Department of Neurology, Norwegian Multiple Sclerosis Competence Centre, Haukeland University Hospital, Jonas Lies vei 65, Bergen 5021, Norway;
- Received 7 November 2016
- Revised 19 January 2017
- Accepted 11 February 2017
- Published online 13 July 2017.
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