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.
Fagotto F.Fagotto F.Curr Top Dev Biol. 2015;112:19-64. doi: 10.1016/bs.ctdb.2014.11.026. Epub 2015 Feb 12.Curr Top Dev Biol. 2015.PMID: 25733137Review.