1. Department of Social Work, University of Alabama at Birmingham, Birmingham, AL, USA
2. Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
3. School of Public Health, Indiana University Bloomington, Bloomington, IN, USA
4. Miller School of Medicine, University of Miami, Miami, FL, USA
5. Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
6. Department of Medicine, Rush University and Stroger Hospital, Chicago, IL, USA
7. Department of Medicine, University of California, San Francisco, CA, USA
8. Department of Medicine, Georgetown University, Washington, DC, USA
9. School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA
10. Department of Medicine, Emory University, Atlanta, GA, USA
11. Department of Medicine, Montefiore Medical Center, Bronx, NY, USA
12. Department of Community Health Sciences, SUNY Downstate Health Sciences University, Brooklyn, NY, USA