Funding for this research was provided by:
Deputy for Research and Technology, Kermanshah University of Medical Sciences (93383)
Received: 27 August 2019
Accepted: 12 October 2019
First Online: 22 October 2019
Ethics approval and consent to participate
: The study was approved by ethics committee of Kermanshah University of Medical Sciences. A written informed consent was obtained from participants.
: Not applicable.
: The authors declare that they have no competing interests.