1. Chemistry and Drug Metabolism Section, Intramural Research Program, National Institutes of Health, National Institute on Drug Abuse,
Baltimore, MD, USA
2. Clinical Psychopharmacology Section, Intramural Research Program, National Institutes of Health,
Baltimore, MD, USA
3. Department of Psychiatry, Maryland Psychiatric Research Center, University of Maryland School of Medicine,
Baltimore, MD, USA
4. Office of Clinical Director, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health,
Baltimore, MD, USA
5. Sanofi-aventis Recherche,
Montpellier, France