Lee W-W, Kim S Y, Kim J Y, Kim H J, Park S S, Jeon B S
Department of Neurology, NRI, College of Medicine, and Movement Disorder Center, CRI, Seoul National University Hospital, Seoul, Korea.
Neurology. 2009 Nov 17;73(20):1708-9. doi: 10.1212/WNL.0b013e3181c1df0c.