Received: 13 May 2020
Accepted: 24 July 2020
First Online: 8 August 2020
Ethics approval and consent to participate
: The present prospective study has been approved by Zagazig University Institutional Research Board (IRB#: 6289). The need to obtain informed consent was waived by the local ethical committee.
: Not applicable.
: The authors declare that they have no competing interests.