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.
Nakamura H, Shimomura-Shimizu M, Karube I.Nakamura H, et al.Adv Biochem Eng Biotechnol. 2008;109:351-94. doi: 10.1007/10_2007_085.Adv Biochem Eng Biotechnol. 2008.PMID: 18004516Review.