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.
Sun YV, Jacobsen DM, Turner ST, Boerwinkle E, Kardia SL.Sun YV, et al. Among authors: boerwinkle e.Comput Stat Data Anal. 2009 Mar 15;53(5):1794-1801. doi: 10.1016/j.csda.2008.04.013.Comput Stat Data Anal. 2009.PMID: 20161066Free PMC article.