Received: 8 January 2021
Accepted: 15 October 2021
First Online: 24 October 2021
: The study's protocol with an ethical code of IR.TUMS.MEDICINE.REC.1397.759 was approved by the Ethics Committee of Tehran University of Medical Sciences (Tehran, Iran), and all methods were performed following the relevant guidelines and regulations. The verbal and written informed consent was obtained from all the children and their parents or legal guardian before implementing this study.
: Not applicable.
: The authors declare that they have no conflict of interests.