1. School of Pharmacy University of Eastern Finland Kuopio Finland
2. Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section Translational Addiction Medicine Branch National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research Baltimore and Bethesda Maryland USA
3. Department of Mental Health Johns Hopkins Bloomberg School of Public Health Johns Hopkins University Baltimore Maryland USA
4. Institute of Public Health and Clinical Nutrition University of Eastern Finland Kuopio Finland
5. Center on Compulsive Behaviors National Institutes of Health Bethesda Maryland USA
6. Translational Analytical Core National Institute on Drug Abuse Intramural Research Program Baltimore Maryland USA
7. Medication Development Program National Institute on Drug Abuse Intramural Research Program National Institutes of Health Baltimore Maryland USA
8. Center for Alcohol and Addiction Studies Department of Behavioral and Social Sciences Brown University Providence Rhode Island USA