1. Visionary Consulting Partners, LLC, Mason Enterprise Center-Fairfax, Fairfax, Virginia, USA
2. Rho Federal Systems Division, Inc., Chapel Hill, North Carolina, USA
3. Social & Scientific Systems, Inc., Durham, North Carolina, USA
4. New Orleans Health Department, New Orleans, Louisiana, USA
5. School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, USA
6. National Institute of Child Health and Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA