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.
Barnett AG, de Looper M, Fraser JF.Barnett AG, et al.Aust N Z J Public Health. 2008 Oct;32(5):408-13. doi: 10.1111/j.1753-6405.2008.00270.x.Aust N Z J Public Health. 2008.PMID: 18959541Free article.
Strand LB, Barnett AG, Tong S.Strand LB, et al. Among authors: barnett ag.BMC Med Res Methodol. 2011 Apr 18;11:49. doi: 10.1186/1471-2288-11-49.BMC Med Res Methodol. 2011.PMID: 21501523Free PMC article.
Guo Y, Barnett AG, Pan X, Yu W, Tong S.Guo Y, et al. Among authors: barnett ag.Environ Health Perspect. 2011 Dec;119(12):1719-25. doi: 10.1289/ehp.1103598. Epub 2011 Aug 9.Environ Health Perspect. 2011.PMID: 21827978Free PMC article.