1. Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts
2. Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
3. Center for Anxiety and Related Disorders, Department of Psychological and Brain Sciences, Boston University, Boston, Massachusetts
4. National Center for Posttraumatic Stress Disorder, Veterans Affairs Boston Healthcare System, Boston, Massachusetts
5. Department of Psychiatry, Boston University School of Medicine, Boston, Massachusetts
6. Department of Psychiatry, New York University School of Medicine, New York
7. AICure, New York, New York
8. Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia