Received: 21 May 2020
Accepted: 19 June 2020
First Online: 23 September 2020
Ethics approval and consent to participate
: This study was approved by the Research Ethics Committee of Faculty of Medicine, Benha University (REC-FOMBU), Egypt (10 April 2018). The experiments were conducted according to the international guidelines including the Declaration of Helsinki (DoH), Islamic Organization for Medical Sciences (IOMS), the WHO, and International Council on Harmonization and Good Clinical Practice (ICHGCP). An informed written consents were obtained from parents of all patients who participated in this study.
: Not applicable.
: The authors declare that they have no competing interests.