Received: 21 December 2020
Accepted: 1 March 2021
First Online: 16 March 2021
: The study protocol was approved by Ain Shams University, Faculty of Medicine Research Ethical Committee FWA 000017585 in 2018. 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 no competing interests.