1. IBD Center Fukuoka University Chikushi Hospital Fukuoka Japan
2. Departments of EndoscopyFukuoka University Chikushi HospitalFukuokaJapan
3. Department ofGastroenterology Fukuoka University Chikushi HospitalFukuokaJapan
4. Departments of Preventive Medicine and Public HealthFukuoka University Facility of MedicineFukuokaJapan
5. Department ofGastroenterology Fukuoka University Facility of Medicine Fukuoka Japan