1. President and Chairman, Department of Health Sciences, Yamagata Prefectural University of Health Sciences, Yamagata 990-2212, Japan
2. Professor Emeritus, Department of Health Sciences, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
3. Chairman of the Board of Directors, International Society of Renal Rehabilitation, Sendai 980-8575, Japan
4. Former Chairman of the Board of Directors, Japanese Society of Renal Rehabilitation; Tokyo 150-0043, Japan