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.
Sober SJ, Brainard MS.Sober SJ, et al.Proc Natl Acad Sci U S A. 2012 Dec 18;109(51):21099-103. doi: 10.1073/pnas.1213622109. Epub 2012 Dec 3.Proc Natl Acad Sci U S A. 2012.PMID: 23213223Free PMC article.
Hoffmann LA, Kelly CW, Nicholson DA, Sober SJ.Hoffmann LA, et al. Among authors: sober sj.J Vis Exp. 2012 Nov 26;(69):e50027. doi: 10.3791/50027.J Vis Exp. 2012.PMID: 23222734Free PMC article.