1. Asher Center for the Study and Treatment of Depressive Disorders; Department of Psychiatry; Northwestern University Feinberg School of Medicine; Chicago Illinois
2. Department of Psychiatry; University of Pittsburgh School of Medicine; Pittsburgh Pennsylvania
3. Department of Epidemiology; Graduate School of Public Health; Epidemiology Data Center; University of Pittsburgh; Pittsburgh Pennsylvania
4. Center for Health Equity Research and Promotion; VA Pittsburgh Healthcare System; Pittsburgh Pennsylvania