1. IHRC, Inc., Atlanta, GA, USA
2. Immunization Services Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
3. Carter Consulting, Inc., Atlanta, GA, USA
4. Northrop Grumman Corporation, Atlanta, GA, USA
5. Office of Health Communications Science, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA