1. From the Department of Neurology, Dongguan People’s Hospital (Affiliated Dongguan Hospital, South Medical University), Guangdong Province, China (J.-F.Q., Y.-K.C., G.-P.L., J.-H.Z., H.-H.Z., H.-P.Y.)
2. Faculty of Neurology, Guangdong Medical University, Zhanjiang, China (H.-H.Z.).