1. Division of Nephrology, Endocrinology, and Vascular Medicine; Tohoku University Graduate School of Medicine; Sendai Japan
2. Department of Diagnostic Radiology; Tohoku University Graduate School of Medicine; Sendai Japan
3. Department of Hematology and Rheumatology; Tohoku University Graduate School of Medicine; Sendai Japan
4. Division of Medical Science; Tohoku University Graduate School of Biomedical Engineering; Sendai Japan