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.
Chang SD, Murphy M, Geis P, Martin DP, Hancock SL, Doty JR, Adler JR Jr.Chang SD, et al. Among authors: geis p.Neurol Med Chir (Tokyo). 1998 Nov;38(11):780-3. doi: 10.2176/nmc.38.780.Neurol Med Chir (Tokyo). 1998.PMID: 9919913Free article.