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.
French SA, Jeffery RW, Pirie PL, McBride CM.French SA, et al. Among authors: jeffery rw.Addict Behav. 1992;17(3):219-26. doi: 10.1016/0306-4603(92)90027-s.Addict Behav. 1992.PMID: 1636469Clinical Trial.
French SA, Jeffery RW, Klesges LM, Forster JL.French SA, et al. Among authors: jeffery rw.Am J Public Health. 1995 May;85(5):720-2. doi: 10.2105/ajph.85.5.720.Am J Public Health. 1995.PMID: 7733437Free PMC article.
French SA, Jeffery RW, Wing RR.French SA, et al. Among authors: jeffery rw.Addict Behav. 1994 Mar-Apr;19(2):147-58. doi: 10.1016/0306-4603(94)90039-6.Addict Behav. 1994.PMID: 8036962Clinical Trial.