Farid, Ashraf Mohamed http://orcid.org/0000-0002-8891-5867
Elkholy, Ahmed Rizk
Shamhoot, Ebrahim Ahmed
Article History
Received: 24 January 2019
Accepted: 1 August 2019
First Online: 26 August 2019
Ethics approval and consent to participate
: Approved from the research ethics committee of the Faculty of Medicine at Tanta University [reference number 32780 obtained on 26/12/2018]. Consent for participation was not applicable as this is a retrospective study, so, the ethics committee waived the consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.