Received: 27 March 2020
Accepted: 29 September 2020
First Online: 30 October 2020
Ethics approval and consent to participate
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation “Institutional Review Board (IRB)” of Alexandria General Hospital on the 14th of February 2017, and with the Helsinki Declaration of 1964 and later versions. The committee’s reference number is unavailable (not applicable). No consent was obtained from the patients since it was a retrospective study.
: All patients included in this research gave written informed consent to publish the data contained within this study.
: The authors declare that they have no competing interests.