1. Genome Analysis Center, Yamanashi Central Hospital, Kofu, Japan
2. Division of Clinical Biochemistry and Immunology, Yamanashi Central Hospital, Kofu, Japan
3. Division of Infection Control and Prevention, Yamanashi Central Hospital, Kofu, Japan
4. Central Clinical Laboratory, Yamanashi Central Hospital, Kofu, Japan
5. Department of Gastroenterology, Yamanashi Central Hospital, Kofu, Japan
6. The University of Tokyo, Tokyo, Japan