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.
Chu W, Li X, Bond T, Gao N, Bin X, Wang Q, Ding S.Chu W, et al. Among authors: gao n.Water Res. 2016 Dec 15;107:141-150. doi: 10.1016/j.watres.2016.10.047. Epub 2016 Oct 19.Water Res. 2016.PMID: 27837731Free article.
Li C, Li XZ, Graham N, Gao NY.Li C, et al. Among authors: gao ny.Water Res. 2008 Jan;42(1-2):109-20. doi: 10.1016/j.watres.2007.07.023. Epub 2007 Jul 26.Water Res. 2008.PMID: 17681362Free article.
Zhang QL, Gao NY, Lin YC, Xu B, Le LS.Zhang QL, et al.Water Environ Res. 2007 Aug;79(8):931-6. doi: 10.2175/106143007x156727.Water Environ Res. 2007.PMID: 17824540