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.
Burghardt LT, Epstein B, Guhlin J, Nelson MS, Taylor MR, Young ND, Sadowsky MJ, Tiffin P.Burghardt LT, et al. Among authors: epstein b.Proc Natl Acad Sci U S A. 2018 Mar 6;115(10):2425-2430. doi: 10.1073/pnas.1714246115. Epub 2018 Feb 16.Proc Natl Acad Sci U S A. 2018.PMID: 29453274Free PMC article.