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.
Zakharov SD, Rokitskaya TI, Shapovalov VL, Antonenko YN, Cramer WA.Zakharov SD, et al. Among authors: rokitskaya ti.Proc Natl Acad Sci U S A. 2002 Jun 25;99(13):8654-9. doi: 10.1073/pnas.122613099. Epub 2002 Jun 11.Proc Natl Acad Sci U S A. 2002.PMID: 12060711Free PMC article.