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.
O'Connor RJ, Norton KJ, Bansal-Travers M, Mahoney MC, Cummings KM, Borland R.O'Connor RJ, et al.Harm Reduct J. 2011 Jan 10;8:1. doi: 10.1186/1477-7517-8-1.Harm Reduct J. 2011.PMID: 21219609Free PMC article.
Licht AS, Hyland AJ, O'Connor RJ, Chaloupka FJ, Borland R, Fong GT, Nargis N, Cummings KM.Licht AS, et al.Int J Environ Res Public Health. 2011 May;8(5):1671-91. doi: 10.3390/ijerph8051671. Epub 2011 May 20.Int J Environ Res Public Health. 2011.PMID: 21655144Free PMC article.
June KM, Norton KJ, Rees VW, O'Connor RJ.June KM, et al.Addict Behav. 2012 Jan;37(1):42-6. doi: 10.1016/j.addbeh.2011.07.039. Epub 2011 Aug 2.Addict Behav. 2012.PMID: 21862228Free PMC article.