1. From the Department of Internal Medicine, Division of Cardio-Vascular Medicine, Kurume University School of Medicine (D.F., H.K., T. Takeuchi, T.G., T.O., K.M., T. Tonai, Y.M., S. U., H.N., T.I.) and Center of Cardiovascular Medicine, Kurume University Hospital, Kurume, Fukuoka, Japan (T.U.).