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.
Zivkovic AM, German JB, Lebrilla CB, Mills DA.Zivkovic AM, et al.Proc Natl Acad Sci U S A. 2011 Mar 15;108 Suppl 1(Suppl 1):4653-8. doi: 10.1073/pnas.1000083107. Epub 2010 Aug 2.Proc Natl Acad Sci U S A. 2011.PMID: 20679197Free PMC article.