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.
Gallegos-Garcia M, Celis LB, Rangel-Méndez R, Razo-Flores E.Gallegos-Garcia M, et al.Biotechnol Bioeng. 2009 Jan 1;102(1):91-9. doi: 10.1002/bit.22049.Biotechnol Bioeng. 2009.PMID: 18846546