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.
Severson HH, Andrews JA, Lichtenstein E, Gordon JS, Barckley M, Akers L.Severson HH, et al. Among authors: gordon js.Nicotine Tob Res. 2000 Nov;2(4):363-70. doi: 10.1080/713688152.Nicotine Tob Res. 2000.PMID: 11197317Clinical Trial.
Andrews JA, Severson HH, Lichtenstein E, Gordon JS.Andrews JA, et al. Among authors: gordon js.J Am Dent Assoc. 1998 Mar;129(3):313-20. doi: 10.14219/jada.archive.1998.0205.J Am Dent Assoc. 1998.PMID: 9529806
Severson HH, Andrews JA, Lichtenstein E, Gordon JS, Barckley MF.Severson HH, et al. Among authors: gordon js.J Am Dent Assoc. 1998 Jul;129(7):993-9. doi: 10.14219/jada.archive.1998.0353.J Am Dent Assoc. 1998.PMID: 9685764Clinical Trial.
Albert DA, Severson H, Gordon J, Ward A, Andrews J, Sadowsky D.Albert DA, et al.Nicotine Tob Res. 2005 Apr;7 Suppl 1:S9-18. doi: 10.1080/14622200500078014.Nicotine Tob Res. 2005.PMID: 16036273