Funding for this research was provided by:
Tehran University of Medical Sciences and Health Services (28829-161-01-94, 1919-98-01-94)
Text and Data Mining valid from 2019-04-09
Received: 21 November 2018
Accepted: 29 March 2019
First Online: 9 April 2019
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Tehran University of Medical Sciences (IR.TUMS.REC.1394.792). All participants provided written informed consent.
: All co-authors have contributed to the research and approved the study for the publication.
: The authors declare that they have no competing interests.
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