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Authors
Ahmed, Omar El Farouk https://orcid.org/0000-0002-4287-1184
Galal, Ahmed
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Article History
Received: 13 September 2019
Accepted: 13 January 2020
First Online: 19 February 2020
Ethics approval and consent to participate
: This research was conducted upon obtaining the approval of the ethical committee of the Faculty of Medicine, Ain Shams University, in July 2016.Since this study involved human subjects, an informed consent was signed and acquired from all the participants or their legal guardians in accordance with the ethical committee recommendations.
: Not applicable
: The authors declare that they have no competing interests.
