AbdelFatah, Mohamed Abdel Rahman http://orcid.org/0000-0003-3432-0988
Article History
Received: 28 March 2018
Accepted: 4 February 2019
First Online: 12 February 2019
Ethics approval and consent to participate
: A retrospective approval from the Research Ethics Committee at the faculty of medicine, Ain Shams University (Federal Wide Assurance No. FWA 000017585) was obtained. Date of approval: 23/12/2018 (reference number: FMASU R 74/ 2018). All participants or their legal guardians provided informed written consent to participate in the study<b><i>.</i></b>
: Not Applicable (as this manuscript does not contain any individual person’s data)
: The author declares that he has no competing interests.
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