de Wit, Jessica
Vervoort, Sigrid C. J. M.
van Eerden, Eefke
van den Berg, Leonard H.
Visser-Meily, Johanna M. A.
Beelen, Anita
Schröder, Carin D.
Funding for this research was provided by:
Netherlands ALS Foundation (201427)
Article History
Received: 3 January 2019
Accepted: 28 May 2019
First Online: 15 June 2019
Ethics approval and consent to participate
: This study has been approved by the Medical Ethics Committee of the University Medical Center Utrecht under file number 16–273-D. Participation was voluntary and all respondents provided written informed consent before inclusion.
: Not applicable.
: The authors declare that they have no competing interests.