1. Department of Molecular Endocrinology and Metabolism, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
2. Department of Preemptive Medicine and Metabolism, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
3. Department of Endocrinology and Metabolism, Tokyo Metropolitan Tama Medical Center, Tokyo 183-8524, Japan
4. Department of Endocrinology, Yokohama City Minato Red Cross Hospital, Kanagawa 231-8682, Japan
5. Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
6. Department of Molecular and Cellular Metabolism, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, Japan