Article History
Received: 7 February 2020
Accepted: 19 March 2020
First Online: 15 April 2020
Ethics approval and consent to participate
: The current study was reviewed and approved by the Institutional review board (IRB) of Faculty of Medicine, Mansoura University (Code number: R/18.02.27).
: Not applicable
: The authors declare that they have no competing interests.