Affiliation: | 1. Division of Gastroenterology and Internal Medicine, Mayo Clinic and Mayo Clinic College of Medicine, Rochester, Minnesota, USAtalley.nicholas@mayo.edu;3. Dept. of Microbiology, Nedland, Australia;4. Dept. of Medicine, Glostrup University Hospital, Denmark;5. Swedish Institute for Infectious Disease Control, Solna, Sweden;6. Bernhoven Hospital, Oss, The Netherlands;7. University of Wisconsin Medical School, Milwaukee, Wisconsin, USA |