Received: 14 February 2021
Accepted: 30 May 2021
First Online: 22 June 2021
: The study protocol was approved by Neurology Department Research Ethical Committee in November 2020 (approval number not available). Written informed consent was obtained from the patients participating in the study, or their first degree relatives if the patient was unable to provide consent, after informing them about the study rationale and their right to withdraw from the study at any time without any consequences.
: Not applicable.
: All authors declare that they do not have any competing interests.