1. Department of Endocrinology and Metabolism, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
2. Department of Diabetes, Endocrinology and Metabolism, Center Hospital of the National Center for Global Health and Medicine, Japan
3. Department of Radiology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
4. Department of Gastroenterology and Hepatology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
5. Department of Respiratory Medicine, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
6. Department of Pathology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
7. Department of Digestive and General Surgery, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan