Funding for this research was provided by:
National Research centre.
Received: 6 April 2021
Accepted: 27 June 2021
First Online: 28 July 2021
: Ethical approval for this research was granted by National Research Centre Medical Ethical Committee (approval no. 16-274), in accordance with the ethical standards of the Declaration of Helsinki. Informed written consent was obtained from parents of the included cases for history taking, examination, collection of samples, performance of molecular analysis, and scientific publishing of the data.
: Not applicable.
: The authors have no conflicts of interest to declare.