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.
Douville E, Downward J.Douville E, et al. Among authors: downward j.Oncogene. 1997 Jul 24;15(4):373-83. doi: 10.1038/sj.onc.1201214.Oncogene. 1997.PMID: 9242373