1. Department of Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
2. Division of Tissue Engineering, Department of Oral-Maxillofacial Surgery, Dentistry and Orthodontics, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan.
3. Department of Bone and Cartilage Regenerative Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
4. Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
5. Department of Cell Biology, Institute of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
6. JR Tokyo General Hospital, Shibuya-ku, Tokyo, Japan.