Received: 22 June 2020
Accepted: 23 November 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: The Ethical Committee of the Faculty of Medicine of Al Azhar University approved the study. The number is not available. An informed written consent was taken from each patient involved in this study prior to the conduct of any study-related activities. All data obtained from every patient were confidential and were not used outside the study.
: Not applicable
: None of the authors has any conflict of interest.