Funding for this research was provided by:
Kermanshah University of Medical Sciences (95313)
Text and Data Mining valid from 2019-05-14
Received: 2 February 2019
Accepted: 21 April 2019
First Online: 14 May 2019
Ethics approval and consent to participate
: The study was approved by the ethics committee of Kermanshah University of medical sciences, Kermanshah, Iran. Individual participate consent was not required.
: Not applicable.
: The authors declare that they have no competing interests.
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