1. Department of Cartilage and Bone Regeneration (Fujisoft), Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan.
2. Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Bunkyo-ku, Japan.
3. Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan.