1. Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
2. Department of Diabetes and Endocrinology Sapporo City General Hospital Sapporo Japan
3. Department of Diabetes and Endocrinology Saiseikai Yokohamashi Tobu Hospital Yokohama Japan
4. Department of Metabolism and Endocrinology National Hospital Organization Kyushu Medical Center Fukuoka Japan
5. Department of Endocrinology and Metabolism National Hospital Organization Kyoto Medical Center Kyoto Japan