VOLUME 284 (2009) PAGES 4857–4864
This work was supported by Grants-in-aid 17012008, 18109011, 18659438, and 18123456 from the Japanese Ministry of Education (21st Century Center of Excellence Program, Frontier Research for Molecular Destruction and Reconstitution of Tooth and Bone); by grants from the Japan Space Forum, NASDA, and the Advanced Bone and Joint Science Strategic Research Networks Projects (Japan Society for Promotion of Science Core to Core Program, Research for the Future Program, Genome Science); and by National Institutes of Health Grant HL58205.