1. U.S. Food and Drug Administration, Center for Veterinary Medicine, Office of Research, Laurel, Maryland.
2. U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Analytics and Outreach, College Park, Maryland.
3. U.S. Food and Drug Administration, Office of Regulatory Affairs, Atlanta, Georgia.
4. U.S. Food and Drug Administration, Office of Regulatory Affairs, Office of Regulatory Science, Rockville, Maryland.
5. Abbott Nutrition, Columbus, Ohio.
6. Eurofins Microbiology Laboratories, Inc., Mounds View, Minnesota.
7. Florida Department of Agriculture, Division of Food Safety, Tallahassee, Florida.
8. Washington Department of Agriculture, Microbiology Laboratory, Olympia, Washington.
9. Michigan Department of Community Health, Bureau of Laboratories, Lansing, Michigan.
10. North Carolina Department of Agriculture and Consumer Services, Raleigh, North Carolina.
11. Michigan Department of Agriculture and Rural Development, Geagley Laboratory, East Lansing, Michigan.