Funding for this research was provided by:
Hamadan University of Medical Sciences (9710186074)
Received: 20 June 2020
Accepted: 29 October 2020
First Online: 11 November 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Hamadan University of Medical Sciences with IR.UMSHA.REC.1397. 728. All the participants were informed on the purpose of the study and written informed consent was obtained from the parent of all individual participants included in the study.
: Not applicable.
: There are no competing interest.