Received: 14 February 2021
Accepted: 22 August 2021
First Online: 31 August 2021
: This study was approved by the Research Ethics Committee of the Faculty of Medicine at Ain shams University in Egypt (FWA 000017585); Reference Number of approval: R46/2020. The requirement for written consent was waived in this retrospective study.
: Not applicable.
: The authors declare that they have no competing interest.