- Correspondence to Dr Jordi Diaz-Manera, Neuromuscular Disorders Unit, Neurology Department, Hospital de la Santa Creu I Sant Pau, Universitat Autònoma de Barcelona, Barcelona 08025, Spain;
- Received September 4, 2018
- Revised November 13, 2018
- Accepted November 19, 2018
- First published December 8, 2018.
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