Received: 19 February 2019
Accepted: 31 July 2019
First Online: 9 August 2019
Ethics approval and consent to participate
: The research ethics committees at Kasr Al-Aini School of medicine and Assiut University gave approval for the conduct of this study. A verbal consent was collected from participants since the study didn’t include confidential data or intervention.
: Not applicable
: The authors declare that they have no competing interests.