Received: 2 June 2020
Accepted: 13 July 2020
First Online: 27 August 2020
Ethics approval and consent to participate
: Approval of the research ethical committee of Faculty of Medicine, Ain-Shams University, was obtained (code number: FMASU M D 98/2018), and written informed consent was obtained from patients.
: Not applicable.
: The authors declare that they have no competing interests.