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.
Loeffler DA, Brickman CM, Juneau PL, Perry MF, Pomara N, Lewitt PA.Loeffler DA, et al.Neurobiol Aging. 1997 Sep-Oct;18(5):555-7. doi: 10.1016/s0197-4580(97)00110-3.Neurobiol Aging. 1997.PMID: 9390784Clinical Trial.
Loeffler DA, LeWitt PA, Juneau PL, Camp DM, Arnold LA, Hyland K.Loeffler DA, et al.Brain Res Bull. 1998 Dec;47(6):663-7. doi: 10.1016/s0361-9230(98)00140-3.Brain Res Bull. 1998.PMID: 10078623