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Authors
Afify, Hossam https://orcid.org/0000-0002-7553-8548
Helmy, Shahinaz M.
El-Nabil, Lobna M.
El-khayat, Naglaa M.
El Nahas, Nevine M.
Zakaria, Magd F.
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Article History
Received: 9 February 2018
Accepted: 28 May 2019
First Online: 15 July 2019
Ethics approval and consent to participate
: This study was approved by the ethical committee for research in Faculty of Medicine—Ain shams university in October 2012. All patients signed informed consent about the nature of the study and the data collected by the authors prior to enrollment in the study.
: 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.
