1. Associate professor in the Department of Medicine at the Emory University School of Medicine and in the Department of Epidemiology at the Emory University Rollins School of Public Health
2. Resident in the Department of Emergency Medicine at Emory University School of Medicine
3. Project manager in the Department of Emergency Medicine at the Washington University School of Medicine
4. Adjunct professor and IRB chair at the University of Cincinnati College of Medicine
5. Senior research administrative coordinator in the Department of Medicine at the Emory University School of Medicine
6. Data analyst in the Department of Medicine at the Emory University School of Medicine
7. Professor and the chair of the Department of Emergency Medicine at the Washington University School of Medicine