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.
Velasco M, Eugenia-Díaz-de Leon A, Márquez I, Brito F, Carrillo-Ruiz JD, Velasco AL, Velasco F.Velasco M, et al.Clin Neurophysiol. 2002 Jan;113(1):25-32. doi: 10.1016/s1388-2457(01)00707-6.Clin Neurophysiol. 2002.PMID: 11801421Clinical Trial.