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.
Spiegel M, Krüger H, Hofmann E, Kappos L.Spiegel M, et al. Among authors: kappos l.J Neurol. 1989 Dec;236(8):487-8. doi: 10.1007/BF00328514.J Neurol. 1989.PMID: 2614497
Filippi M, Paty DW, Kappos L, Barkhof F, Compston DA, Thompson AJ, Zhao GJ, Wiles CM, McDonald WI, Miller DH.Filippi M, et al. Among authors: kappos l.Neurology. 1995 Feb;45(2):255-60. doi: 10.1212/wnl.45.2.255.Neurology. 1995.PMID: 7854522Clinical Trial.