1. Department of Hemodialysis and Apheresis; The University of Tokyo Hospital; Tokyo Japan
2. Department of Clinical Epidemiology and Health Economics, School of Public Health; The University of Tokyo; Tokyo Japan
3. Department of Clinical Data Management and Research, Clinical Research Center; National Hospital Organization Headquarters; Tokyo Japan
4. Department of Health Informatics and Policy; Tokyo Medical and Dental University Graduate School of Medicine; Tokyo Japan
5. Department of Nephrology and Endocrinology; The University of Tokyo Hospital; Tokyo Japan
6. Department of Emergency and Critical Care Medicine; The University of Tokyo Hospital; Tokyo Japan