Al-Azizi, H.
Mosaad, M.
Yahia, S.
Helmy, H.
Kersh, A.
Funding for this research was provided by:
none
Article History
Received: 18 October 2017
Accepted: 5 February 2019
First Online: 18 February 2019
Ethics approval and consent to participate
: The aim and procedures of the study were explained to every participant and an informed consent was obtained before being enrolled in the study. The study was approved by the ethical committee of the Faculty of Medicine; Cairo University has allowed this study. Date of approval on 23rd February 2015 and final approval of whole work on 18th of July 2017, but the reference number of approval is not available.
: Not applicable.
: The authors declare that they have no competing interests.
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