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.
Riley DE, Lang AE, Lewis A, Resch L, Ashby P, Hornykiewicz O, Black S.Riley DE, et al. Among authors: ashby p.Neurology. 1990 Aug;40(8):1203-12. doi: 10.1212/wnl.40.8.1203.Neurology. 1990.PMID: 2381527
Strafella A, Ashby P, Lang AE.Strafella A, et al. Among authors: ashby p.Mov Disord. 1997 May;12(3):360-9. doi: 10.1002/mds.870120315.Mov Disord. 1997.PMID: 9159731
Strafella A, Ashby P, Lozano A, Lang AE.Strafella A, et al. Among authors: ashby p.Can J Neurol Sci. 1997 May;24(2):133-6. doi: 10.1017/s0317167100021466.Can J Neurol Sci. 1997.PMID: 9164690Clinical Trial.