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Article History

Received: 18 June 2018

Accepted: 29 October 2018

First Online: 9 November 2018

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: An approval from the Research Ethics Committee in Banha Faculty of Medicine was obtained according to the World Medical Association Declaration of Helsinki.

: All authors state that they all want to publish this paper in Bulletin of the National Research Centre.

: The authors declare that they have no competing interests.

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