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.
Lepage M, McMahon K, Galloway GJ, De Deene Y, Bäck SA, Baldock C.Lepage M, et al.Phys Med Biol. 2002 Jun 7;47(11):1881-90. doi: 10.1088/0031-9155/47/11/304.Phys Med Biol. 2002.PMID: 12108773
Copland DA, de Zubicaray GI, McMahon K, Wilson SJ, Eastburn M, Chenery HJ.Copland DA, et al.Neuroimage. 2003 Sep;20(1):302-10. doi: 10.1016/s1053-8119(03)00279-9.Neuroimage. 2003.PMID: 14527590Clinical Trial.