Received: 30 October 2019
Accepted: 14 July 2020
First Online: 20 September 2020
Ethics approval and consent to participate
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional research committee in Benha Faculty of Medicine; the reference number is not applicable.
: Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interest.