Received: 15 December 2020
Accepted: 8 April 2021
First Online: 25 May 2021
: This study has been approved by the Faculty of Medicine, Zagazig University, Institutional Review Board (IRB) (reference number is 4464/13-3-2018). Written informed consents were obtained from all participants.
: Not applicable
: The authors declare that they have no competing interests.