An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Kim SY, Shin YC, Oh KS, Shin DW, Lim WJ, Cho SJ, Jeon SW.Kim SY, et al. Among authors: jeon sw.Scand J Work Environ Health. 2020 Mar 1;46(2):198-208. doi: 10.5271/sjweh.3852. Epub 2019 Sep 20.Scand J Work Environ Health. 2020.PMID: 31539082Free article.