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.
Ding E, Zhao Q, Bai Y, Xu M, Pan L, Liu Q, Wang B, Song X, Wang J, Chen L, Zhu B.Ding E, et al. Among authors: chen l.J Thorac Dis. 2016 May;8(5):833-41. doi: 10.21037/jtd.2016.03.36.J Thorac Dis. 2016.PMID: 27162656Free PMC article.
Wang B, Han L, Dai S, Li X, Cai W, Yang D, Chen L, Wang N, Zhu B, Zhang J.Wang B, et al. Among authors: chen l.Biomed Res Int. 2018 Dec 19;2018:8541638. doi: 10.1155/2018/8541638. eCollection 2018.Biomed Res Int. 2018.PMID: 30662916Free PMC article.
Wang BS, Chen L, Li XT, Xu M, Zhu BL, Zhang J.Wang BS, et al. Among authors: chen l.Biomed Environ Sci. 2017 Sep;30(9):695-700. doi: 10.3967/bes2017.094.Biomed Environ Sci. 2017.PMID: 29081347Free article.
Ma Q, Jiang J, Pan X, Cai G, Wang H, Zhou X, Jiang T, Chen L.Ma Q, et al. Among authors: chen l.BMC Public Health. 2017 Nov 28;17(1):910. doi: 10.1186/s12889-017-4891-6.BMC Public Health. 2017.PMID: 29183301Free PMC article.