Received: 13 April 2020
Accepted: 17 December 2020
First Online: 14 January 2021
Ethics approval and consent to participate
: The authors obtained permission to conduct this study that was approved by the Institutional Review Board (IRB), Mansoura Faculty of Medicine, Mansoura University, Cairo, Egypt (code number: R/19.04.483), and (theExternalRef removedidentifier: NCT04454541) all participants gave written informed consent. The procedures followed were in accordance with our protocol. The study was carried out during the period from May 2019 to December 2019 at the neurology outpatient clinic of Mansoura University Hospital.
: Not applicable.
: The authors declare that they have no competing interests.