1. Robert Robinson Laboratories,
Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, U.K.
2. Department of Biochemistry,
Institute of Glycobiology, University of Oxford, South Parks Road, Oxford OX1 3QU, U.K.
3. Department of Molecular and Clinical
Pharmacology, University of Liverpool,
Liverpool, U.K.
4. Department
of Molecular Microbiology
and Immunology, Georgetown University Medical Center, 3900 Reservoir Road, Washington, D.C. 20057-1440, United States
5. Romark Laboratories, L.C., Tampa, Florida 33607, United States
6. Department of Medicine, Division
of Gastroenterology and Hepatology, Stanford University Medical Center, Stanford, California 94305-5187, United
States