Received: 3 July 2020
Accepted: 3 November 2020
First Online: 9 December 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ain Shams University, Faculty of Medicine Research Ethics Committee FWA 000017585 in January 2016. Written informed consent was obtained from the patients participating in the study.
: Not applicable
: All authors declare that they do not have any competing interests.