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.
Artero EG, España-Romero V, Lee DC, Sui X, Church TS, Lavie CJ, Blair SN.Artero EG, et al.Mayo Clin Proc. 2012 Oct;87(10):944-52. doi: 10.1016/j.mayocp.2012.07.015.Mayo Clin Proc. 2012.PMID: 23036670Free PMC article.