1. From the Department of Internal Medicine and Molecular Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (Y.O., S.K., N.O., M.N., Y.A., M.K., K.O., N.S., I.S., T.F., Y.M.); and Sankyo Co, Ltd, Shinagawa-ku, Tokyo, Japan (H.K., N.T., T.I.).