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.
Xia YS, Chen BD, Christie P, Smith FA, Wang YS, Li XL.Xia YS, et al. Among authors: christie p.J Environ Sci (China). 2007;19(10):1245-51. doi: 10.1016/s1001-0742(07)60203-4.J Environ Sci (China). 2007.PMID: 18062425
Xu P, Christie P, Liu Y, Zhang J, Li X.Xu P, et al. Among authors: christie p.Environ Pollut. 2008 Nov;156(1):215-20. doi: 10.1016/j.envpol.2008.01.003. Epub 2008 Feb 15.Environ Pollut. 2008.PMID: 18280625Free article.
Liu H, Zhang J, Christie P, Zhang F.Liu H, et al. Among authors: christie p.Sci Total Environ. 2008 May 15;394(2-3):361-8. doi: 10.1016/j.scitotenv.2008.02.004. Epub 2008 Mar 5.Sci Total Environ. 2008.PMID: 18325566
Tao Y, Zhang S, Wang Z, Christie P.Tao Y, et al. Among authors: christie p.Environ Pollut. 2009 Feb;157(2):545-51. doi: 10.1016/j.envpol.2008.09.030. Epub 2008 Nov 1.Environ Pollut. 2009.PMID: 18977571