1. Department of Sociology, Emory University, Atlanta, Georgia
2. Department of Surgery, Emory University School of Medicine, Atlanta, Georgia
3. Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
4. Regenstrief Institute, Indianapolis, Indiana
5. Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
6. Department of Behavioral, Social, and Health Education Sciences, Emory University Rollins School of Public Health, Atlanta, Georgia
7. Department of Health Policy and Management, Emory University Rollins School of Public Health, Atlanta, Georgia