- Correspondence to: Dr J-J Kim, BK21 Life Sciences, Room 206, Seoul National Univeristy College of Medicine, 28 Yeongon-dong, Chongno-gu, Seoul, Korea, 110-744;
- Received April 16, 2002
- Accepted December 13, 2002
- Revised September 18, 2002
- First published July 1, 2003.
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