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.
Wilkinson DE, Weller SK.Wilkinson DE, et al. Among authors: weller sk.IUBMB Life. 2003 Aug;55(8):451-8. doi: 10.1080/15216540310001612237.IUBMB Life. 2003.PMID: 14609200Free article.Review.