Article History
Received: 19 October 2020
Accepted: 12 January 2021
First Online: 1 February 2021
Ethics approval and consent to participate
: Approval for this study was obtained from IRB of Medical Faculty, Aswan University prior to study execution (IRB No. Asw-376-7-19). The research complied with Helsinki. In addition, all subjects (or their parents or legal guardians) have given their written informed consent. The written informed consent was clear and indicated the purpose of the study, and their freedom to participate or withdraw at any time without any obligation. Furthermore, participants’ confidentiality and anonymity were assured by assigning each participant with a code number for the purpose of analysis only. The study was not based on any incentives or rewards for the participants.
: Not applicable in this section.
: The authors have no conflicts of interest to declare.