1. From the Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (J.O., K.S., N.K., T.S., R.K., M.N., T.O., K.K., K.N., K.S., S.S., S.T., T.A., K.S., S.M., H.S.); and Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan (Y.H., Y.O.).