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.
Volk RJ, Cantor SB, Steinbauer JR.Volk RJ, et al. Among authors: cantor sb.JAMA. 1992 Jun 17;267(23):3153.JAMA. 1992.PMID: 1593733No abstract available.
Volk RJ, Steinbauer JR, Cantor SB, Holzer CE 3rd.Volk RJ, et al. Among authors: cantor sb.Addiction. 1997 Feb;92(2):197-206.Addiction. 1997.PMID: 9158231