1. Department of Internal Medicine, Division of Infectious Diseases, Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
2. Essentia Health, Department of Gastroenterology, Duluth, Minnesota, USA
3. Essentia Institute of Rural Health, Duluth, Minnesota, USA
4. St. Luke’s Hospital, Section of Infectious Diseases, Duluth, Minnesota, USA