Received: 2 October 2019
Accepted: 17 May 2020
First Online: 23 May 2020
Ethics approval and consent to participate
: The study has received ethical permission from the Ethics Committee of Tabriz University of Medical Sciences (IR.TBZMED.REC.1396.101). Also, Written informed consent was obtained from each participant with multiple sclerosis.
: Not applicable.
: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.