Received: 9 February 2022
Accepted: 18 May 2022
First Online: 23 May 2022
: The written informed consent was taken from all participants after a full explanation of the study. We obtained the children’ consent from their parents or legal guardians. The study protocol was approved by the ethics committee of Tehran University of Medical Sciences (IR.TUMS.VCR.REC.1399.308). All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: We declare no competing interests.