1. Department of Cardiovascular Medicine; National Cerebral and Cardiovascular Center; 5-7-1 Fujishiro-dai Suita Osaka 565-8565 Japan
2. Department of Pathology; National Cerebral and Cardiovascular Center; Osaka Japan
3. Department of Transplantation; National Cerebral and Cardiovascular Center; Osaka Japan
4. Department of Cardio-Renal Medicine and Hypertension; Nagoya City University; Japan