Division of Epidemiology, Mailman School of Public Health, Columbia University, PH-18-EPI, 600 West 168th Street, New York, New York 10032, USA.

Department of Psychology, Boston University, Massachusetts 02215, USA. mlyons@bu.edu

Missouri Alcoholism Research Center at Washington University, Department of Psychiatry, Washington University School of Medicine, 40 N Kingshighway Blvd, Suite 2, St Louis, MO 63108, USA. qfu@matlock.wustl.edu

Department of Psychiatry, Massachusetts Mental Health Center, Harvard Medical School, 02129, USA. rosemary_toomey@hms.harvard.edu

Women's Health Sciences Division (116B-3), National Center for PTSD, VA Boston Healthcare System, MA 02130, USA. Karestan.Koenen@bmc.org

School of Public Health, St. Louis University Health Sciences Center, Missouri, USA. scherrjf@SLU.EDU

Women's Health Sciences Division, National Center for PTSD, VA Boston Healthcare System, Boston, Massachusetts 02114, USA. karestan.koenen@bmc.org

St. Louis VAMC and Washington University School of Medicine, St. Louis, Missouri.

Department of Psychology, Boston University, Boston, Massachusetts 02215, USA. mlyons@bu.edu

Department of Psychology, Williams College, Williamstown, Massachusetts, USA.

Department of Veterans Affairs Medical Center and Division of Pulmonary Medicine, Boston University School of Medicine, Boston, Mass, USA. joel.karlinsky@med.va.gov

St. Louis Veterans Affairs Medical Center (151-JC), Washington University School of Medicine, 915 North Grand Boulevard, St. Louis, MO, 63106, USA, straycat64@yahoo.com.

Research Service, St Louis Veterans Affairs Medical Center, St Louis, Missouri 63106, USA. scherrej@msnotes.wustl.edu

Department of Psychiatry, Institute of Behavioral Genomics, University of California, San Diego, La Jolla, CA 92093-0603, USA. wkremen@ucsd.edu

Department of Psychiatry, Midwest Alcoholism Research Center, Washington University School of Medicine, St. Louis, MO 63110, USA. grantj@msnotes.wustl.edu

Author Affiliations: Department of Society, Human Development, and Health, Harvard School of Public Health and the Department of Psychiatry, Boston University School of Medicine, Boston, Mass; Centers for Behavioral and Preventive Medicine, Brown Medical School and The Miriam Hospital, Providence, Mass.

Department of Society, Human Development, and Health, Harvard School of Public Health, Boston, Massachusetts.

Medical and Research Services, St. Louis Veterans Affairs Medical Center, St. Louis, MO; Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO.

Institute of Behavioral Genomics, Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA.

Department of Society, Human Development, and HealthHarvard School of Public Health, Cambridge, MA, US. kkoenen@hsph.harvard.edu.

Research Service, St. Louis Veterans Affairs Medical Center, 915 North Grand Boulevard, St. Louis, MO 63106, United States; Department of Internal Medicine, Division of General Medical Sciences, Washington University School of Medicine, 660 South Euclid, St. Louis, MO 63108, United States.

Medical Service, St. Louis Veterans Affairs Medical Center, St. Louis, MO 63106. USA.

Department of Psychiatry, University of California, San Diego, California, United States of America.

Author Affiliations: Department of Psychiatry and Center for Behavioral Genomics, University of California, San Diego, La Jolla.

Midwest Alcoholism Research Center, Department of Psychiatry, Washington University School of Medicine, 660 South Euclid Ave., Campus Box 8134, St. Louis, MO 63110, United States.

Toomey, Psychology Department, Boston University, 648 Beacon Street, 6th Floor, Boston, MA 02215, USA. rosemary_toomey@hms.harvard.edu.

Department of Psychiatry, Center for Behavioral Genomics, University of California, San Diego, La Jolla, California.

Research Service, Veterans Affairs Medical Center, St Louis, MO, USA, and Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA.

Research Service, St. Louis Veterans Affairs Medical Center, St. Louis, Missouri 63106, USA. hongx@epiresearch-stl.org

Department of Society, Human Development, and Health, Harvard School of Public Health, Boston, MA, United States; Department of Epidemiology, Harvard School of Public Health, Boston, MA, United States; Department of Psychiatry, Boston University School of Medicine, United States.

1 Department of Community Health, St. Louis University School of Public Health, St. Louis, Missouri, United States of America; Midwest Alcoholism Research Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri, United States of America.

Department of Psychology, Boston University, 648 Beacon St., 2nd floor, Boston, MA 02215, USA.

St Louis Veterans Affairs Medical Center, Research Service, St Louis, MO 63106, USA; Department of Psychiatry, Midwest Alcoholism Research Center, Washington University School of Medicine, Box 8134, St Louis, MO 63110, USA.

Department of Psychiatry, Center for Behavioral Genomics, University of California-San Diego, 9500 Gilman Drive (MC 0738), La Jolla, CA. wkremen@ucsd.edu.

Research Service, St Louis Veterans Affairs Medical Center (VAMC), St Louis, MO, USA.

Department of Veterans Affairs, Environmental Epidemiology Service, Washington DC 20420, USA. han.kang@va.gov

St. Louis Veterans Affairs Medical Center, 2Washington University, and 3St. Louis University, St. Louis, Missouri; 4University of Colorado Health Sciences Center and 5Denver Veterans Affairs Medical Center, Denver, Colorado; and 6Veterans Affairs Pharmacy Benefits Management, Hines, Illinois.

Research Service, St. Louis Veterans Affairs Medical Center, St. Louis, MO 63106, USA; Department of Psychiatry, Midwest Alcoholism Research Center, Washington University School of Medicine, St. Louis, MO 63108, USA.

Research Service, Boston VA Healthcare System, Boston, Massachusetts.

Boston University.

Department of Psychiatry, University of California, San Diego, La Jolla, CA; Center for Behavioral Genomics, University of California, San Diego, La Jolla, CA; VA San Diego Healthcare System, La Jolla, CA.

Department of Radiology, University of California, San Diego, La Jolla, California; Division of Psychiatry, Ulleval University and Institute of Psychiatry, University of Oslo, Oslo, Norway.