1. Chairman, The Emergency Medicine Department, Inova Fairfax Hospital, Falls Church, Virginia, USA
2. Division Chief Emergency Medicine, Inova Medicine Service Line, Inova Health Systems, Falls Church, Virginia, USA
3. Assistant Medical Director, The Emergency Medicine Department, Inova Fairfax Hospital, Falls Church, Virginia, USA
4. Vice Chairman, The Emergency Medicine Department, Inova Fairfax Hospital, Falls Church, Virginia, USA
5. Director of Safety and Quality, The Emergency Medicine Department, Inova Fairfax Hospital, Falls Church, Virginia, USA
6. Research Investigator 2, Inova Medicine Service Live, Inova Health System, Falls Church, Virginia, USA