Funding for this research was provided by:
Tehran University of Medical Sciences and Health Services
Received: 28 January 2020
Accepted: 22 April 2020
First Online: 18 May 2020
Ethics approval and consent to participate
: The study was approved by the Tehran University of Medical Sciences Ethics Committee (code number 93–03–27-26623). The participants were informed that participation in the study was voluntary and they had the right to withdraw at any time during the data collection process.
: Not applicable.
: The authors declare no Competing interests.