1. Department of Neurology, Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, Georgia, USA
2. Department of Neurology, Tianjin Huanhu Hospital, Tianjin, China
3. Department of Pharmacology, Shandong University School of Medicine, Jinan, China
4. Department of Neurology, Veterans Affairs Medical Center, Decatur, Georgia, USA