1. From the Departments of Internal Medicine and Cardiology (R.M., T.O., M.Y., Y.N., K.A., K.T., J.Y.), Clinical Hematology and Clinical Diagnostics (K.-R.K., K.O.), and Pharmacology (Y.I.), Osaka City University Medical School, Osaka, Japan; and the Third Department of Internal Medicine (T.H., S.I., Y.K.), Osaka Medical College, Osaka, Japan.