- Correspondence to: Shiro Ikegawa MD, PhD, Laboratory for Bone and Joint Diseases, SNP Research Centre, RIKEN, c/o Institute of Medical Science, University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan;
- Received 24 August 2003
- Accepted 9 October 2003
- Published online 16 January 2004.
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