Funding for this research was provided by:
kurdistan university of medical sciences (14/23312)
Text and Data Mining valid from 2019-06-18
Received: 24 September 2018
Accepted: 7 June 2019
First Online: 18 June 2019
Ethics approval and consent to participate
: Approval to conduct the study was granted by the Ethics Committee of Kurdistan University of Medical Sciences, Kurdistan, Iran. Informed written consent was received from all participants.
: Not applicable.
: The authors declare that they have no competing interests.