Received: 12 August 2020
Accepted: 24 November 2020
First Online: 1 December 2020
Ethics approval and consent to participate
: The study protocol was approved by the Medical Ethics Committee of Minia university Hospital, Faculty of Medicine, Minia, Egypt. Written informed consents were taken from patient’s parent or legal guardians.
: Not applicable.
: The authors declare that they have no competing interests.