Received: 12 October 2020
Accepted: 26 February 2021
First Online: 9 March 2021
: This study was approved by Mazandaran University of Medical Sciences ethics committee. All procedures were performed based on the ethical statement IR.MAZUMS.REC.1398.017 meeting number at Mazandaran University of Medical Sciences. In the current study, all ethical guidelines including Ethics and Consent to participate from the parents have been collected.
: Not applicable.
: The authors announce that they have no difference in interest.