Received: 19 October 2020
Accepted: 29 November 2020
First Online: 5 January 2021
Ethics approval and consent to participate
: The study protocol was approved by the Ethical Committee of Ain Shams University (reference number is not applicable), and written informed consent was obtained from all patients to participate in the study.
: Written informed consent was obtained from all patients for publication of the study.
: The authors declare that they have no competing interests.