1. Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (N.K., K.S., R.K., S.M., N.Y., M.E.-A.-M., M.A.H.S., J.O., T.S., M.N., S.S., H.S.).
2. Research Fellow of Japan Society for the Promotion of Science, Tokyo (N.K., R.K.).
3. Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Japan (Y.S.).
4. Department of Thoracic Surgery, Institute of Development, Aging, and Cancer, Tohoku University, Sendai, Japan (Y.H., Y.O.).