Funding for this research was provided by:
Kermanshah University of Medical Sciences (92472)
Received: 11 November 2019
Accepted: 29 April 2020
First Online: 13 May 2020
Ethics approval and consent to participate
: This study was approved by the Ethical Committee of Deputy of Research and Technology of Kermanshah University of Medical Sciences (KUMS.REC.1394.315) and a signed consent letter was taken from all the participants.
: Not applicable.
: The authors declare that they have no competing interests.