1. The Institute of Molecular and Cellular Biosciences
2. The Institute for Oral Science, Matsumoto Dental University, Hiro-oka, Shiojiri, Nagano
3. The Institute for Frontier Medical Sciences, Kyoto University, Sakyo-ku, Kyoto
4. The Department of Orthopedic Surgery, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Tokyo
5. CREST, Japan Science and Technology, Kawaguchi, Saitama, Japan