Text and Data Mining valid from 2019-04-16
Received: 18 December 2018
Accepted: 27 March 2019
First Online: 16 April 2019
Ethics approval and consent to participate
: The study protocol was reviewed and approved by the Ethics Committee of the School of Health Management and Information Sciences, Iran University of Medical Sciences.
: Not applicable.
: The authors declare that they have no competing interests.
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