Article Information
PubMed
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History
- Received August 14, 1998
- Accepted December 21, 1998
- Published online May 1, 1999.
Copyright & Usage
U.S. Government
Author Information
- 1Drug Development Group, Behavioral Neuroscience Branch, Addiction Research Center, National Institute on Drug Abuse, National Institutes of Health, Baltimore, Maryland (J.M.W., M.G., B.H.); and 2Department of Neuropharmacology and Molecular Biology, Division of Neuroscience, Walter Reed Army Institute of Research, Washington, D.C. (F.C.T.)