1. From the Department of Cardiovascular Medicine (Y.M., H.S., T.U., K.A., K.O., T.H. K.M., Y.E., Y.F., A.T.), the Department of Biomedical Engineering (T.M.), and the Department of Developmental Molecular Anatomy (K.N., Y.S.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan.