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.
Kurthen M, Linke DB, Reuter BM, Hufnagel A, Elger CE.Kurthen M, et al. Among authors: hufnagel a.Cortex. 1991 Jun;27(2):333-7. doi: 10.1016/s0010-9452(13)80139-6.Cortex. 1991.PMID: 1879162Free article.
Hufnagel A, Poersch M, Elger CE, Zentner J, Wolf HK, Schramm J.Hufnagel A, et al.Electroencephalogr Clin Neurophysiol. 1995 Jan;94(1):12-8. doi: 10.1016/0013-4694(94)00229-e.Electroencephalogr Clin Neurophysiol. 1995.PMID: 7530635