Baert F, Noman M, Vermeire S, Van Assche G, D'Haens G, Carbonez A, Rutgeerts P (Division of Gastroenterology, University Hospital Gasthuisberg; University Center for Statistics, Leuven University, Leuven, Belgium). Influence of immunogenicity on the long-term efficacy of infliximab in Crohn's disease. N Engl J Med 2003;348:601–608.