1. Department of Medicine, Division of Diabetes, Endocrinology and Metabolism Kimitsu Chuo Hospital Chiba Japan
2. Department of Endocrinology, Hematology and Gerontology Chiba University Graduate School of Medicine Chiba Japan
3. Department of Rehabilitation Kimitsu Chuo Hospital Chiba Japan
4. Department of Surgery Kimitsu Chuo Hospital Chiba Japan
5. Department of Internal Medicine Hotaruno Central Naika Chiba Japan