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Authors
Abdelkader, Ann A.
El Gohary, Amira M.
Mourad, Husam S. http://orcid.org/0000-0002-1994-3186
El Salmawy, Dina A.
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Article History
Received: 20 November 2018
Accepted: 22 April 2019
First Online: 22 May 2019
Ethics approval and consent to participate
: All procedures performed in the study were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments. The study was ethically approved by the research committee and reviewed by the Faculty of Medicine of Cairo University Board on 18 November 2013. Written informed consent was obtained from all participants involved in this investigation prior to the conduct of any study-related activities.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
