1. Laboratory of Neuroimaging National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health Bethesda Maryland USA
2. Department of Diagnostic Radiology Yale University School of Medicine New Haven Connecticut USA
3. Human Psychopharmacology Laboratory, Division of Intramural Clinical and Biological Research National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health Bethesda Maryland USA
4. Russell H. Morgan Department of Radiology and Radiological Science Johns Hopkins Medical Institutions Baltimore Maryland USA