Funding for this research was provided by:
Social Determinants of Health Research Center, Saveh University of Medical Sciences, Saveh, Iran
Received: 4 December 2019
Accepted: 9 October 2020
First Online: 13 October 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the Saveh University of Medical Sciences Ethics Committee (IR.SAVEHUMS. REC. 1397.004). All participants were informed that their participation was voluntary, that the procedure used did not pose any potential personal or physical risk and that their identities would remain anonymous and confidential. Informed written consent forms were obtained from a parent or guardian on behalf of children before participation.
: Not applicable.
: The authors declare that there are no conflicts of interest.