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.
Czoli CD, Hammond D, White CM.Czoli CD, et al.Can J Public Health. 2014 Feb 3;105(2):e97-e102. doi: 10.17269/cjph.105.4119.Can J Public Health. 2014.PMID: 24886856Free PMC article.
Hammond D, White CM, Czoli CD, Martin CL, Magennis P, Shiplo S.Hammond D, et al.Can J Public Health. 2015 Oct 9;106(6):e408-12. doi: 10.17269/cjph.106.5105.Can J Public Health. 2015.PMID: 26680433Free PMC article.