1. Center for Advanced IBD Research and Treatment; Kitasato University Kitasato Institute Hospital; Tokyo Japan
2. Department of Clinical Laboratory; Kitasato University Kitasato Institute Hospital; Tokyo Japan
3. Department of Gastroenterology and Hepatology; Kitasato University Kitasato Institute Hospital; Tokyo Japan
4. Department of Pathology; Kitasato University Kitasato Institute Hospital; Tokyo Japan