Chan Wai-Man, Yip Nelson K F, Lam Dennis S C
Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, 147K Argyle Street, Kowloon, Hong Kong.
Neurology. 2004 Jan 13;62(1):99. doi: 10.1212/01.wnl.0000099187.15025.97.