1. Bone Bioengineering Laboratory; Department of Biomedical Engineering; Columbia University; New York NY USA
2. Department of Orthopedics and Traumatology; The University of Hong Kong; Hong Kong
3. Department of Bone and Joint Surgery; the First Affiliated Hospital of Guangxi Medical University; Nanning Guangxi China
4. Department of Orthopedic Surgery; Johns Hopkins University School of Medicine; Baltimore MD USA
5. Department of Orthopedic Surgery; New York University Langone/Hospital for Joint Diseases; New York NY USA
6. Division of Endocrinology; Department of Medicine; Columbia University; New York NY USA