Received: 23 December 2019
Accepted: 5 October 2020
First Online: 1 December 2020
Ethics approval and consent to participate
: Approval of the Ethics Committee of HIPH, Alexandria University, Egypt, was obtained on 9 February 2016. Committee’s reference number is not applicable. All patients were informed, and a written consent was obtained from all participants after explaining the aim of the study.
: Not applicable.
: The authors declare that they have no competing interests.