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.
Angell-Petersen E, Spetalen S, Madsen SJ, Sun CH, Peng Q, Carper SW, Sioud M, Hirschberg H.Angell-Petersen E, et al. Among authors: madsen sj.J Neurosurg. 2006 Jan;104(1):109-17. doi: 10.3171/jns.2006.104.1.109.J Neurosurg. 2006.PMID: 16509154