1 Department of Orthopaedics and Traumatology, Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
2 Department of Orthopedics, Taipei Medical University Hospital, College of Medicine, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan.