Received: 7 March 2021
Accepted: 20 July 2021
First Online: 23 December 2021
: Written informed consent was obtained from all participants before holding the interviews. Also, the study protocol was approved by the Ethical Review Committee of the Tehran University of Medical Sciences (Ref: IR.TUMS.SPH.REC.1395.1786).
: Not applicable.
: The authors declare that they have no competing interests.