1. Department of Nephrology Osaka Red Cross Hospital Osaka Japan
2. Department of Clinical Engineering Osaka Red Cross Hospital Osaka Japan
3. Department of Nephrology Osaka University Graduate School of Medicine Suita Japan
4. Blood Purification Business Division Asahi Kasei Medical Co., Ltd. Tokyo Japan
5. Development and Planning Department Asahi Kasei Medical MT Corp. Oita Japan
6. Department of Palliative Care Osaka Red Cross Hospital Osaka Japan