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.
Teaford MF, Ungar PS.Teaford MF, et al. Among authors: ungar ps.Proc Natl Acad Sci U S A. 2000 Dec 5;97(25):13506-11. doi: 10.1073/pnas.260368897.Proc Natl Acad Sci U S A. 2000.PMID: 11095758Free PMC article.
Scott RS, Ungar PS, Bergstrom TS, Brown CA, Grine FE, Teaford MF, Walker A.Scott RS, et al. Among authors: ungar ps.Nature. 2005 Aug 4;436(7051):693-5. doi: 10.1038/nature03822.Nature. 2005.PMID: 16079844