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.
Li R, Sit CH, Yu JJ, Sum RK, Wong SH, Cheng KC, McKenzie TL.Li R, et al. Among authors: mckenzie tl.Int J Environ Res Public Health. 2017 Jun 25;14(7):687. doi: 10.3390/ijerph14070687.Int J Environ Res Public Health. 2017.PMID: 28672833Free PMC article.
Sit CH, McManus A, McKenzie TL, Lian J.Sit CH, et al. Among authors: mckenzie tl.Prev Med. 2007 Dec;45(6):424-31. doi: 10.1016/j.ypmed.2007.02.003. Epub 2007 Feb 9.Prev Med. 2007.PMID: 17337044