1. Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharm aceutical and Health Sciences, Kanazawa University, Japan
2. Department of Nephrology, School of Medicine, Kanazawa Medical University, Japan
3. Department of Diagnostic Pathology, Kanazawa University Hospital, Japan
4. Department of Pediatrics, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
5. Department of Internal Medicine, Public Central Hospital of Matto Ishikawa, Japan
6. Division of Medical Safety, Kanazawa University, Japan