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.
Siekevitz M, Josephs SF, Dukovich M, Peffer N, Wong-Staal F, Greene WC.Siekevitz M, et al. Among authors: josephs sf.Science. 1987 Dec 11;238(4833):1575-8. doi: 10.1126/science.2825351.Science. 1987.PMID: 2825351