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.
Kaufman E, Reoux J.Kaufman E, et al.Am J Drug Alcohol Abuse. 1988;14(2):199-209. doi: 10.3109/00952999809001547.Am J Drug Alcohol Abuse. 1988.PMID: 3177339No abstract available.