Received: 12 February 2021
Accepted: 17 May 2021
First Online: 22 May 2021
Ethics approval and consent to participate
: The study was approved by our institution’s ethics committee (Mansoura Faculty of Medicine Institutional Research Board) (ethics committee reference number is R. R.19.05.513), and all patients gave their written informed consent before inclusion in the study.
: This study is a retrospective study, so there is no need for patient consent.
: The authors declare that they have no competing interests.