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.
Tummala R, Green-Church KB, Limbach PA.Tummala R, et al. Among authors: limbach pa.J Am Soc Mass Spectrom. 2005 Sep;16(9):1438-1446. doi: 10.1016/j.jasms.2005.04.006.J Am Soc Mass Spectrom. 2005.PMID: 16006141Free article.