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Authors
Fushimi, Masahito https://orcid.org/0000-0002-5504-2895
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Article History
Received: 30 May 2019
Accepted: 10 September 2019
First Online: 26 September 2019
Compliance with ethical standards
:
: The author has no conflicts of interest to declare regarding the publication of this paper.
: The research ethics board at the Japan Labour Health and Welfare Organization, which has established occupational health promotion centers in each administrative division, approved the study protocol.
: All individual participants were informed that participation in the paper-based survey was voluntary and confidential.
