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.
Blasko I, Grubeck-Loebenstein B.Blasko I, et al.Drugs Aging. 2003;20(2):101-13. doi: 10.2165/00002512-200320020-00002.Drugs Aging. 2003.PMID: 12534311Review.