1. Department of Obstetrics and Gynecology, Temple University School of Medicine, Allegheny Health Network, Pittsburgh, Pennsylvania.
2. Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania.
3. Department of Internal Medicine, University of Utah, Salt Lake City, Utah.
4. Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania.
5. Departments of Psychiatry and Behavioral Sciences, and Obstetrics and Gynecology, Asher Center for Research and Treatment of Depressive Disorders, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.