1. Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Japan
2. Institute for Biomedical Sciences, Shinshu University, Japan
3. Clinical Laboratory Science Division, Shinshu University Graduate School of Medicine (Health Sciences), Japan
4. Department of Dementia and Higher Brain Function, Tokyo Metropolitan Institute of Medical Science, Japan
5. First Depatment of Medicine, Hamamatsu University School of Medicine, Japan
6. Department of Urology, Hamamatsu University Hospital, Japan
7. Hepatology Division, Department of Internal Medicine II, Hamamatsu University School of Medicine, Japan