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.
Corson MA, Boyd T, Kind P, Allen PF, Steele JG.Corson MA, et al. Among authors: allen pf.Br Dent J. 1999 Nov 13;187(9):481-4. doi: 10.1038/sj.bdj.4800310.Br Dent J. 1999.PMID: 10729982
Slade GD, Nuttall N, Sanders AE, Steele JG, Allen PF, Lahti S.Slade GD, et al. Among authors: allen pf.Br Dent J. 2005 Apr 23;198(8):489-93; discussion 483. doi: 10.1038/sj.bdj.4812252.Br Dent J. 2005.PMID: 15849587