1. Division of Endocrinology, Department of Internal Medicine, Seirei Hamamatsu General Hospital, Hamamatsu, Japan
2. Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
3. Department of Internal Medicine, Enshu Hospital, Hamamatsu, Japan
4. Medical Education Center, Hamamatsu University School of Medicine, Hamamatsu, Japan
5. Department of Pharmacology, Hamamatsu University School of Medicine, Hamamatsu, Japan
6. Department of Laboratory Medicine, Enshu Hospital, Hamamatsu, Japan
7. Department of Laboratory Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan