Funding for this research was provided by:
IR. Iran National Institute for Medical Research Development (NIMAD) and the Deputy of Research and Technology, IR. Iran Ministry of Health and Medical Education (IR.TUMS.VCR.REC.96.02.159.35954 & IR.NIMAD.REC.1397.476)
Text and Data Mining valid from 2019-05-17
Received: 15 January 2019
Accepted: 16 April 2019
First Online: 17 May 2019
Ethics approval and consent to participate
: The ethics committee of National Institute for Medical Research Development (IR.NIMAD.REC.1397.476) and Tehran University of Medical Sciences (IR.TUMS.VCR.REC.96.02.159.35954) approved the study. We will obtain informed consents from the study participants and ensure their anonymity.
: Not applicable.
: The authors declare that they have no competing interests.
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