Razek, Ahmed Abdel Khalek Abdel http://orcid.org/0000-0002-9613-5932
Sherif, Fatma Mohamed
Article History
Received: 10 April 2019
Accepted: 26 August 2019
First Online: 6 September 2019
Compliance with ethical standards
:
: All authors declare they have no conflict of interest.
: All procedures performed in the studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Waived because this is a retrospective study.