Received: 21 March 2021
Accepted: 18 November 2021
First Online: 6 December 2021
: The study protocol was reviewed and approved by the Ethics Committee of Tehran University of Social Welfare and Rehabilitation Sciences (IR.USWR.REC.1394.187). All methods were carried out in accordance with relevant guidelines and regulations/Declaration of Helsinki. Informed consent was obtained from both literate participants and the legal guardian(s) of all illiterate participants.
: Not applicable
: The authors declare no conflict of interest.