Received: 18 March 2020
Accepted: 21 December 2020
First Online: 20 January 2021
Ethics approval and consent to participate
: This study was approved by ethical committee of Benha Faculty of Medicine, Benha University.
: Written consent for the publication of identifying patient/clinical data as well as identifying images was obtained from all relevant patients. Written informed consent to publish any identifying patient, clinical data and identifying images was also obtained from the parents or legal guardians of children.
: None of the authors has any conflicts of interest to disclose