1. From the First Department of Internal Medicine (Y.T., H.K., T.S., K.I., S.S., Y.T., S.U., Y.S. and Blood Transfusion Medicine (M.M., Y.F.), Nara Medical University, Japan; and the Department of Biomaterials (U.J., Y.K., Y.T.), Field of Tissue Engineering, Kyoto University, Kyoto, Japan.