Funding for this research was provided by:
ALS Therapy Alliance
Text and Data Mining valid from 2018-10-16
Received: 3 April 2018
Accepted: 3 October 2018
First Online: 16 October 2018
: The study was approved by the Ethical Committee of the KU Leuven (P148/2011).
: Not applicable.
: The authors declare that they have no competing interests.
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