1. From the Departments of Cardiovascular Surgery (T.N., H.T., N.K., M.E., H.Y.), Cardiovascular Medicine (K.O., H.S., T.U., K.A., Y.M., A.T., K.S.), and Biomedical Engineering (T.M.), and the 21st Century COE Program on Lifestyle-Related Diseases (H.S., T.M.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan.