1. Division of Gastroenterology and Hepatology; Mayo Clinic; Rochester; MN; USA
2. Division of Experimental Pathology and Lab Medicine; Mayo Clinic; Rochester; MN; USA
3. Division of Gastroenterology; University of California San Diego; La Jolla; CA; USA
4. Division of Colon and Rectal Surgery; Mayo Clinic; Rochester; MN; USA
5. Division of Anatomic Pathology; Mayo Clinic; Rochester; MN; USA
6. Dr Henry D. Janowitz Division of Gastroenterology; Mount Sinai School of Medicine; New York; NY; USA
7. University of Chicago Inflammatory Bowel Disease Center; Chicago; IL; USA
8. Biomedical Statistics and Informatics; Mayo Clinic; Rochester; MN; USA