1. From the Department of Cardiovascular Surgery (Y.I., S.M., S.F., S.K.-S., Y.S.) and the Department of Metabolic Medicine (N.M., A.H., I.S.), Graduate School of Medicine, Osaka University, Suita, Osaka, Japan; the Division of Biostatistics (T.D.), Department of Mathematics, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan; and the Institute of Advanced Biomedical Engineering and Science (T.S., T.O.), Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan.