1. Division of Nephrology, Department of Medicine Kurume University School of Medicine Kurume City Fukuoka Japan
2. Division of Rehabilitation Kurume University Hospital Kurume City Fukuoka Japan
3. Department of Radiology Kurume University School of Medicine Kurume City Fukuoka Japan
4. Research Institute of Medical Mass Spectrometry Kurume University School of Medicine Kurume City Fukuoka Japan
5. Biostatistics Center Kurume University School of Medicine Kurume City Fukuoka Japan