Rabbit ileal sucrase-isomaltase represents a functional receptor for C. difficile toxin A: C. Pothoulakis, R.J. Gilbert, C. Cladaras, I. Castagliuolo, S. Nikulasson, J.T., J.S. Montcrief, G. Semenza, T.W. Wilkins, J.T. LaMont. Sections of Gastroenterology and Pathology and Molecular Genetics, Boston University School of Medicine, Boston, MA, Section of Gastroenterology, St. Elizabeth's Hospital, Boston, MA, Department of Biochemistry, Swiss Federal Institute of Technology, Zurich, Switzerland and Virginia Polytechnic Institute, Blacksburg, VA