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.
Stella A, Boettcher PJ.Stella A, et al. Among authors: boettcher pj.Genetics. 2004 Jan;166(1):341-50. doi: 10.1534/genetics.166.1.341.Genetics. 2004.PMID: 15020429Free PMC article.