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.
Echeverria SE, Luan Kang A, Isasi CR, Johnson-Dias J, Pacquiao D.Echeverria SE, et al.J Phys Act Health. 2014 Jan;11(1):186-94. doi: 10.1123/jpah.2012-0023. Epub 2013 Jan 28.J Phys Act Health. 2014.PMID: 23359105
Gundersen DA, ZuWallack RS, Dayton J, Echeverría SE, Delnevo CD.Gundersen DA, et al. Among authors: echeverria se.Am J Epidemiol. 2014 Jan 1;179(1):39-47. doi: 10.1093/aje/kwt226. Epub 2013 Oct 7.Am J Epidemiol. 2014.PMID: 24100957Free PMC article.