1. From the Department of Nuclear Medicine, Chonnam National University, Gwangju, Republic of Korea (J.-H.K.), Chonnam National University Hwasun Hospital, Republic of Korea
2. Molecular Imaging Center (J.-H.K.), Chonnam National University Hwasun Hospital, Republic of Korea
3. Department of Neurology (K.-H.C.), Chonnam National University Hwasun Hospital, Republic of Korea
4. Department of Neurology, Chonnam National University Hospital, Gwangju, Republic of Korea (K.-H.C., K.-W.K., J.-T.K., S.-M.C., S.-H.L., M.-S.P., B.C.K., M.-K.K., K.-H.C.).