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.
Samson M, Emerson MM, Cepko CL.Samson M, et al. Among authors: emerson mm.Dev Dyn. 2009 Dec;238(12):3218-25. doi: 10.1002/dvdy.22138.Dev Dyn. 2009.PMID: 19882727Free PMC article.
Emerson MM, Long JB, Van Vactor D.Emerson MM, et al.Dev Dyn. 2013 Jul;242(7):861-73. doi: 10.1002/dvdy.23979. Epub 2013 May 30.Dev Dyn. 2013.PMID: 23606306Free PMC article.