Funding for this research was provided by:
Shahid Sadoughi University of Medical Sciences (3718)
Received: 22 September 2019
Accepted: 23 January 2020
First Online: 3 February 2020
Ethics approval and consent to participate
: All procedures performed in this study were approved by the ethics committee of Shahid Sadoughi University of Medical Science, Yazd, Iran (IR.SSU.MEDICINE.REC.1396.311). During the training of interviewers, principal investigator emphasis was placed on the importance of obtaining informed consent that informed that participants can choose not to answer any questions. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.