Article History
Received: 10 June 2021
Accepted: 1 August 2021
First Online: 6 August 2021
Declarations
:
: Written informed consents were signed by the parents/guardians of the participants. The study was approved by the Medical Research Ethical Committee of the National Research Centre, reference number: (16-343).
: Not applicable.
: The authors declare that they have no competing interests.