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Authors
El-Mashad, Abd El-Rahman
El-Mahdy, Heba
El Amrousy, Doaa
Elgendy, Marwa
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Article History
Received: 13 June 2016
Revised: 7 December 2016
Accepted: 12 December 2016
First Online: 21 December 2016
Compliance with ethical standards
:
: None to declare.
: The authors declare that they have no conflict of interest.
: The study was approved by the local Ethics Committee of Faculty of Medicine of our University and has been performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Informed consent was obtained from all parents of the participants included in the study.
