1. Key Laboratory of Bionic Engineering, (Ministry of Education) and College of Biological and Agricultural Engineering, Jilin University, Changchun, People's Republic of China
2. State Key Laboratory of Intelligent Manufacturing of Advanced Construction Machinery, Xuzhou, People's Republic of China
3. Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, People's Republic of China
4. Institute of Orthopaedic & Musculoskeletal Science, University College London, Royal National Orthopaedic Hospital, Stanmore, London, UK