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.
Smith N, Martins SS, Kim J, Rivera-Aguirre A, Fink DS, Castillo-Carniglia A, Henry SG, Mooney SJ, Marshall BDL, Davis C, Cerdá M.Smith N, et al.Addiction. 2019 Feb;114(2):248-258. doi: 10.1111/add.14440. Epub 2018 Oct 22.Addiction. 2019.PMID: 30207015Free PMC article.
Castillo-Carniglia A, Rivera-Aguirre A, Calvo E, Queirolo R, Keyes KM, Cerdá M.Castillo-Carniglia A, et al.Addiction. 2020 Nov;115(11):2089-2097. doi: 10.1111/add.15058. Epub 2020 Apr 15.Addiction. 2020.PMID: 32196789Free PMC article.