Received: 24 November 2020
Accepted: 20 January 2021
First Online: 1 February 2021
Ethics approval and consent to participate
: The research was approved by the Ethics Committee at the National Research Centre of Egypt and the registration number is 20084. A written online consent was obtained from all participants that they agree to answer the questionnaire, and only participants who agreed to the consent were able to access the questionnaire and answer it.
: A written online consent was obtained from all participants that they accept publication of the final results.
: No competing interests.