Funding for this research was provided by:
Babol University of Medical Sciences (258-9706616)
Received: 3 August 2020
Accepted: 21 January 2021
First Online: 1 February 2021
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committees of the Babol University of Medical Sciences (IR.MUBABOL.REC.1397.253). The trial is registered in the Iranian Registry of Clinical Trial (IRCT20190220042771N1). Before participation in the study, written informed consent was obtained from each child’s primary guardian.
: The article does not contain any individual’ details and consent for publication is not applicable.
: The authors declare that they have no competing interests.