Khairat, Ibtsam http://orcid.org/0000-0002-8366-1714
Khalfallah, Mohamed
Shaban, Aliaa
Farag, Ibrahim Abu
Elkady, Asmaa
Article History
Received: 22 July 2019
Accepted: 22 October 2019
First Online: 21 November 2019
Ethics approval and consent to participate
: This study was approved by the Ethical Committee of Tanta University under the protocol number 2017–10. All the procedures in the study were in accordance with the 1975 Helsinki Declaration, updated in 2013. Informed written consents were obtained from the guardians of all the participants included in the study.
: An informed written consent for publication was obtained from the guardians of all participants included in the study.
: The authors declare that they have no competing interest.