1. Department of Nephrology, Rheumatology, Endocrinology and MetabolismOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
2. Department of Chronic Kidney Disease and Cardiovascular DiseaseOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
3. Department of Internal MedicineInnoshima General Hospital Hiroshima Japan
4. Department of Cardiovascular SurgeryOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
5. Division of Nephrology and Dialysis, Department of Internal MedicineNippon Kokan Fukuyama Hospital Hiroshima Japan
6. Department of Human Resource Development of Dialysis Therapy for Kidney DiseaseOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
7. Department of Geriatric and General MedicineOsaka University Graduate School of Medicine Osaka Japan