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Authors
Mehrdad, Ramin https://orcid.org/0000-0001-7887-1015
Pouryaghoub, Gholamreza
Afsah, Masoomeh Mahmoodi
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Article History
Accepted: 16 January 2020
First Online: 4 February 2020
Compliance with Ethical Standards
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: The authors declare that they have no conflict of interest.
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (Tehran University of Medical Sciences, code 9411308012–IR.TUMS.MEDICINE.REC.1395.1940) and with the Helsinki Declaration of 1975, as revised in 2000.
: Informed consent (in Persian language) was obtained from all workers who were included in the study.
