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.
Szpunar KK, Watson JM, McDermott KB.Szpunar KK, et al. Among authors: watson jm.Proc Natl Acad Sci U S A. 2007 Jan 9;104(2):642-7. doi: 10.1073/pnas.0610082104. Epub 2007 Jan 3.Proc Natl Acad Sci U S A. 2007.PMID: 17202254Free PMC article.
Christ SE, Van Essen DC, Watson JM, Brubaker LE, McDermott KB.Christ SE, et al. Among authors: watson jm.Cereb Cortex. 2009 Jul;19(7):1557-66. doi: 10.1093/cercor/bhn189. Epub 2008 Nov 2.Cereb Cortex. 2009.PMID: 18980948Free PMC article.