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Authors
Ali, Mohamed
Hashem, Abdelwahab https://orcid.org/0000-0002-0664-3504
Helmy, Tamer E.
Zewin, Tamer
Sheir, Khaled Z.
Shokeir, Ahmed A.
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Article History
Received: 30 April 2018
Accepted: 2 August 2018
First Online: 13 August 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures in this study involving human participants were in accordance with the ethical standards of the institutional 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 the study.
