1. From Daiichi Suntory Biomedical Research Ltd (N.K., N.N., T. Ochiai, Y.H., K.K., K.S.), Osaka; the Divisions of Clinical Gene Therapy (R.M., Y.T.) and of Gene Therapy Science (Y.K.), and the Department of Geriatric Medicine (T. Ogihara), Osaka University Graduate School of Medicine, Suita, Japan.