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.
Hilfiker A, Hilfiker-Kleiner D, Pannuti A, Lucchesi JC.Hilfiker A, et al.EMBO J. 1997 Apr 15;16(8):2054-60. doi: 10.1093/emboj/16.8.2054.EMBO J. 1997.PMID: 9155031Free PMC article.