1. Age Dimension Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan; Department of Orthopedics, Zhong Shan Hospital, Fudan University (former Shanghai Medical University), Shanghai, China
2. Age Dimension Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
3. Core Research for Evolution and Technology, Japan Science and Technology (CREST JST), Tokyo, Japan; Biomaterials Center, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, Japan
4. Core Research for Evolution and Technology, Japan Science and Technology (CREST JST), Tokyo, Japan; Biomedical Engineering Laboratory, Graduate School of Engineering, University of Tokyo, Tokyo, Japan