- Correspondence to: Dr S Ikegawa Laboratory for Bone and Joint Diseases, SNP Research Center, RIKEN, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan;
- Received 8 May 2006
- Accepted 27 September 2006
- Revised 25 September 2006
- Published in print 1 April 2007.
- Published online 30 March 2007.
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