El-Sarnagawy, Ghada N. http://orcid.org/0000-0003-1671-0894
El sharkawy, Sara I. http://orcid.org/0000-0003-2215-672X
Helal, Nadia E. http://orcid.org/0000-0002-4998-7331
Article History
Received: 18 April 2021
Accepted: 30 June 2021
First Online: 14 July 2021
Declarations
:
: The authors have no conflicts of interest to declare that are relevant to the content of this article.
: This retrospective study involving human participants was according to the ethical standards of the institutional and national research committee as well as the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The research ethics committee of the Faculty of Medicine of Tanta University approved this study (Approval number: 33932/7/20).
: Written informed consent was waived as this study is retrospective.