1. Department of Neurology; Shanghai General Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai P.R. China
2. Shanghai Geriatric Institute of Chinese Medicine; Longhua Hospital; , Shanghai University of Traditional Chinese Medicine; Shanghai P.R. China
3. School of Pharmacy; Shanghai Jiao Tong University; Shanghai P.R. China
4. Department of Neurology; College of Physicians and Surgeons; Columbia University; NY USA
5. Department of Neurology; Singapore General Hospital; National Neuroscience Institute; Singapore