1. Department of Counseling and Educational Psychology, School of Education, Indiana University, Bloomington, Indiana
2. Midwest Alcoholism Research Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri
3. Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
4. Addictions Department, Institute of Psychiatry, Psychology & Neuroscience, King’s College, London, England
5. Division of Behavioral Genetics, Department of Psychiatry, Rhode Island Hospital, Providence, Rhode Island
6. Department of Psychiatry & Human Behavior, Warren Alpert School of Medicine, Brown University, Providence, Rhode Island