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.
Hübner A, Yang X, Nolen DM, Popova TG, Cabello FC, Norgard MV.Hübner A, et al.Proc Natl Acad Sci U S A. 2001 Oct 23;98(22):12724-9. doi: 10.1073/pnas.231442498.Proc Natl Acad Sci U S A. 2001.PMID: 11675503Free PMC article.
Yang XF, Alani SM, Norgard MV.Yang XF, et al.Proc Natl Acad Sci U S A. 2003 Sep 16;100(19):11001-6. doi: 10.1073/pnas.1834315100. Epub 2003 Aug 29.Proc Natl Acad Sci U S A. 2003.PMID: 12949258Free PMC article.