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Article History

Received: 25 August 2021

Accepted: 15 January 2022

First Online: 5 February 2022

Declarations

:

: The study protocol was approved by Ain Shams University, Faculty of Medicine Research Ethical Committee of neurology department (on 12 may 2018). Written informed consent was obtained from the patients participating in the study or first-degree relatives (if patient can’t give consent) after informing them about the study rationale and their right to withdraw from the study at any time without any consequences.Committee’s reference number: not applicable.

: Not applicable.

: All authors declare that they do not have any competing interests.