Received: 23 March 2020
Accepted: 7 October 2020
First Online: 14 October 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Mazandaran University of Medical Sciences, Sari, Iran (grant number: 1734). Written informed consent was obtained from the participants before conducting the research. Since all the participants were 16 years of age and older, there was no need for parental or guardian consent.
: Not applicable.
: The authors have no conflicts of interest to declare.