1. From the Division of Cardiology (H.O., Y.T., A.Y., T.K., K.A., T.O., H.Y., I.T.), Bell Land General Hospital, Sakai, Japan; Department of Internal Medicine and Cardiology (M.Y.), Osaka City University Graduate School of Medicine, Osaka, Japan; Department of Cardiology (J.Y.), Osaka Ekisaikai Hospital, Osaka, Japan; and Division of Cardiology (K.Y.), Kawasaki Medical School, Kurashiki, Japan.