- Correspondence to: Dr Masaaki Uno, Department of Neurosurgery, School of Medicine, The University of Tokushima, 3-8-15, Kuramoto-cho, Tokushima 770–8503, Japan;
- Received July 12, 2002
- Accepted November 11, 2002
- Revised October 31, 2002
- First published March 1, 2003.
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