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.
Liu Y, Chen HJ, Liang L, Wang Y.Liu Y, et al. Among authors: chen hj.PLoS One. 2013 Jun 10;8(6):e65361. doi: 10.1371/journal.pone.0065361. Print 2013.PLoS One. 2013.PMID: 23762352Free PMC article.
Chen HJ, Wang Y.Chen HJ, et al.BMC Public Health. 2014 Jan 16;14:42. doi: 10.1186/1471-2458-14-42.BMC Public Health. 2014.PMID: 24433323Free PMC article.
Zhang Q, Lamichhane R, Chen HJ, Xue H, Wang Y.Zhang Q, et al. Among authors: chen hj.J Epidemiol Community Health. 2014 Nov;68(11):1034-42. doi: 10.1136/jech-2013-203476. Epub 2014 Jul 24.J Epidemiol Community Health. 2014.PMID: 25059731
Wang Y, Xue H, Chen HJ, Igusa T.Wang Y, et al. Among authors: chen hj.BMC Public Health. 2014 Sep 6;14:923. doi: 10.1186/1471-2458-14-923.BMC Public Health. 2014.PMID: 25194699Free PMC article.