1. Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, SAR, PR China (S.B., X.L., B.W., Y.Y., H.W., S.L., L.F., Yan Wang, Yucong Li, W.L., Yujia Wang, X.Z., Yuan Li, L.L., Z.Y., M.W., W.Y.-W.L., G.L.).
2. Department of Pediatric Orthopaedics, South China Hospital, Health Science Center, Shenzhen University, Shenzhen, PR China (Q.P.).
3. Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR, PR China (K.P.U., X.J.).