1. Laboratory of Bacterial Polysaccharides,
Center for Biologics Evaluation and Research, Food and Drug Administration, 1401 Rockville Pike, Rockville,
Maryland 20852-1448, United States
2. Biotechnology Unit, MSC 5522,
National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892,
United States