Received: 16 October 2020
Accepted: 25 January 2021
First Online: 15 February 2021
Ethics approval and consent to participate
: This study had ethical approval from the Institutional Review Board (IRB) of Faculty of Medicine, Assiut University with Approval Number (17300381). This study was registered on clinical trial with registration Number (NCT04344834). Informed consent was written and obtained from the study participants by their agreement to participate in the study before filling the questionnaire.
: Not applicable
: The authors declare no competing interests.