Drexel Institute for Biotechnology and Virology Research, Drexel University, Doylestown, PA 18901; Division of Gastroenterology, Saint Louis University School of Medicine, John Cochran Veterans Affairs Medical Center, St. Louis, MO 63106; Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853; Fox Chase Cancer Center, Philadelphia, PA 19111; and Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, United Kingdom(2005-01-10時点)