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.
Green R, MacKillop J, Hartwell EE, Lim AC, Baskerville WA, Karno M, Ray LA.Green R, et al. Among authors: ray la.Nicotine Tob Res. 2021 Mar 19;23(4):748-755. doi: 10.1093/ntr/ntaa049.Nicotine Tob Res. 2021.PMID: 33247757Free PMC article.
MacKillop J, Miranda R Jr, Monti PM, Ray LA, Murphy JG, Rohsenow DJ, McGeary JE, Swift RM, Tidey JW, Gwaltney CJ.MacKillop J, et al. Among authors: ray la.J Abnorm Psychol. 2010 Feb;119(1):106-14. doi: 10.1037/a0017513.J Abnorm Psychol. 2010.PMID: 20141247Free PMC article.