Received: 20 June 2019
Accepted: 4 June 2020
First Online: 10 June 2020
Ethics approval and consent to participate
: This study, with code of ethics (IR.SSU.SPH.REC.1394.69) in Shahid Sadoughi University of medical sciences and health services (Yazd). All participants in the study received written informed consent,
: Not applicable.
: The authors declare that they have no conflict of interest.