Funding for this research was provided by:
Tehran University of Medical Sciences and Health Services
Received: 25 July 2020
Accepted: 16 December 2020
First Online: 6 January 2021
Ethics approval and consent to participate
: Our study was approved by the institutional review board of Tehran University of Medical Sciences and according to Helsinki declaration. All participants’ parents of the minors included in this study gave written consent before enrollment. Participants’ data were considered confidential and no extra cost was imposed on our participants.
: Not Applicable.
: The authors declare that there is no conflict of interests.