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.
Zhang J, He P, Ding W, Xu X, Ullah S, Abbas T, Ai C, Li M, Cui R, Jin C, Zhou W.Zhang J, et al. Among authors: xu x.Sci Rep. 2019 Aug 12;9(1):11663. doi: 10.1038/s41598-019-48149-6.Sci Rep. 2019.PMID: 31406153Free PMC article.
Tang S, Liu Y, Zheng N, Li Y, Ma Q, Xiao H, Zhou X, Xu X, Jiang T, He P, Wu L.Tang S, et al. Among authors: xu x.Sci Rep. 2020 Feb 4;10(1):1745. doi: 10.1038/s41598-020-57809-x.Sci Rep. 2020.PMID: 32019970Free PMC article.
Huang S, Ding W, Yang J, Zhang J, Ullah S, Xu X, Liu Y, Yang Y, Liu M, He P, Jia L.Huang S, et al. Among authors: xu x.J Environ Manage. 2020 Sep 15;270:110929. doi: 10.1016/j.jenvman.2020.110929. Epub 2020 Jun 20.J Environ Manage. 2020.PMID: 32721354