1. Department of Psychology and Center on Alcoholism, Substance Abuse, and Addictions, University of New Mexico, 2650 Yale Blvd. SE, Albuquerque, NM 87106, USA.
2. Division of Medications Development and Division of Treatment and Recovery Research, National Institute on Alcohol Abuse and Alcoholism, 6700B Rockledge Drive, Bethesda, MD 20892-6902, USA.
3. Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, and National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, 10 Center Drive (10CRC/15330), Bethesda, MD 21224, USA.
4. Medication Development Program, National Institute on Drug Abuse Intramural Research Program, 251 Bayview Blvd., Baltimore, MD 21224, USA.
5. Center for Alcohol and Addiction Studies, Brown University, Providence, RI 02912, USA.