aDepartment of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
bParkinson’s Disease Study Group, Seoul National University Hospital, Seoul, Korea
cDepartment of Neurology, Ewha Womans University Mokdong Hospital, Seoul, Korea
dDepartment of Neurology, Ulsan University Hospital, Ulsan, Korea
eDepartment of Neurology and Movement Disorder Center, Seoul National University College of Medicine, Seoul, Korea
fDepartment of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea
Copyright © 2013 The Korean Movement Disorder Society
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