C-Y Hsu1, L-Y Huang1, J-S Chan2, C-C Yang1, P-J Hsiao2. 1. Division of Cardiology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan and Division of Cardiology, Department of Internal Medicine, Taoyuan Armed Forces General Hospital, Taiwan No. 168, Zhongxing Rd., Longtan Dist., Taoyuan City 325, Taiwan, R.O.C. 2. Division of Nephrology, Department of Internal Medicine, Taoyuan Armed Forces General Hospital, Taiwan No. 168, Zhongxing Rd., Longtan Dist., Taoyuan City 325, Taiwan, R.O.C. and Division of Nephrology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.