1. Diabetes Centre, Aizawa Hospital, Matsumoto, 390-8510, Japan
2. Department of Neurology, Aizawa Hospital, Matsumoto, 390-8510, Japan
3. Department of Cardiovascular Medicine, Aizawa Hospital, Matsumoto, 390-8510, Japan
4. Clinical Laboratory Centre, Aizawa Hospital, Matsumoto, 390-8510, Japan
5. Miyamoto Naika Clinic, Matsumoto, 390-0848, Japan