1. Division of Clinical Nephrology and Rheumatology, Department of Medicine II, Niigata University Graduate School of Medical and Dental Sciences,
1-757 Asahimachi-dori, Chuo-ku, Niigata, Niigata 951-8510, Japan
2. Division of Ophthalmology and Visual Sciences, Niigata University Graduate School of Medical and Dental Sciences,
Niigata, Japan
3. Health Administration Center of Niigata University,
Niigata, Japan
4. Department of Medical Technology, Faculty of Medicine, School of Health Sciences, Niigata University,
Niigata, Japan