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.
Smith SA, Mutch NJ, Baskar D, Rohloff P, Docampo R, Morrissey JH.Smith SA, et al. Among authors: mutch nj.Proc Natl Acad Sci U S A. 2006 Jan 24;103(4):903-8. doi: 10.1073/pnas.0507195103. Epub 2006 Jan 12.Proc Natl Acad Sci U S A. 2006.PMID: 16410357Free PMC article.