1. School of Public Health, Georgia State University, Atlanta, GA, USA
2. Rollins School of Public Health, Emory University, Atlanta, GA, USA
3. Washington University School of Medicine, Washington University in St. Louis, Saint Louis, MO, USA
4. School of Health, Georgetown University, Washington, DC, USA
5. Trudy Busch Valentine School of Nursing, Saint Louis University, Saint Louis, MO, USA
6. School of Medicine, Wake Forest University, Winston-Salem, NC, USA