- Correspondence to: Eung Kweon Kim, MD, Institute of Vision Research, Department of Ophthalmology, Brain Korea 21 Project, Division of Medical Sciences, Yonsei University College of Medicine, 134 Shinchon-dong, Sodaemun-gu, Seoul, Korea, 120-752;
- Accepted May 8, 2002
- First published November 1, 2002.
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