1. Influenza Division, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
2. Division of Research, Kaiser Foundation Research Institute, Oakland, California
3. Department of Health Research and Policy, School of Medicine, Stanford University, California
4. Abt Associates, Inc, Cambridge, Massachusetts
5. Battelle Memorial Institute, Atlanta, Georgia
6. Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon
7. National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, Georgia