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.
Keely E, Clark H, Karovitch A, Graham I.Keely E, et al.Can Fam Physician. 2010 Jun;56(6):558-63.Can Fam Physician. 2010.PMID: 20547525Free PMC article.Clinical Trial.
Shea AK, Shah BR, Clark HD, Malcolm J, Walker M, Karovitch A, Keely EJ.Shea AK, et al. Among authors: keely ej.Chronic Dis Can. 2011 Mar;31(2):58-64.Chronic Dis Can. 2011.PMID: 21466755Free article.