Received: 31 March 2021
Accepted: 16 July 2021
First Online: 27 July 2021
: The protocol was reviewed and approved by the local ethical committee of “Research Ethics Committee at the Faculty of Medicine, Ain Shams University.” It stated that no formal ethics approval was required in a retrospective study, and so, no reference number was given by the IRB.
: Although this research is based on a retrospective study, written consent for publication was obtained for these cases.
: No financial or non-financial competing interest.