Elmohamady, Mohamed Nagy
Abdelghaffar, Walid
Salem, Tamer Ibrahim
Article History
Received: 8 September 2017
Accepted: 3 February 2018
First Online: 24 February 2018
Compliance with ethical standards
:
: All authors certify that they have no affiliations with or involvement in any organization or entity with any financial or non-financial interest in the subject matter or materials discussed in this manuscript.
: All procedures performed in this study were in accordance with the ethical standards of the Benha University Research Ethics Committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in this study.