1. Department of Psychiatry, Vanderbilt University School of Medicine, Nashville, Tennessee
2. Center for Young Adult Health and Development, University of Maryland School of Public Health, College Park, College Park, Maryland
3. Treatment Research Institute, Philadelphia, Pennsylvania
4. Department of Pediatrics, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
5. Departments of Psychiatry and Psychology, University of Vermont, Burlington, Vermont
6. Department of Psychiatry and Behavior Neurosciences, Wayne State University, Detroit, Michigan
7. Department of Pediatrics, The Warren Alpert Medical School of Brown University, Providence, Rhode Island
8. Department of Psychiatry, Addiction Clinic, Medical University of Vienna, Vienna, Austria
9. Department of Psychiatry, Johns Hopkins School of Medicine, Baltimore, Maryland
10. Department of Obstetrics and Gynecology, Johns Hopkins School of Medicine, Baltimore, Maryland