Affiliation: | 1. Laboratory of Chemical Physics, National Institute of Arthritis, Diabetes, and Digestive and Kidney Diseases National Institutes of Health , Bethesda, MD, 20205;2. Office of Biologies Research and Review, Center for Drugs and Biologies , 8800 Rockville Pike, Bethesda, MD, 20205;3. Laboratory of Chemistry, National Institute of Arthritis, Diabetes, and Digestive and Kidney Diseases National Institutes of Health , Bethesda, MD, 20205 |