1. Department of Restorative Dentistry, Division of Biomaterials, The University of Texas Health Science Center at San Antonio, San Antonio, Texas.
2. Ren-Ji Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, People's Republic of China.
3. Cartilage Biology and Orthopaedics Branch, Department of Health and Human Services, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland.
4. Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, Central Arkansas Veterans Healthcare System, University of Arkansas for Medical Sciences, Little Rock, Arkansas.
5. Biomedical Engineering, Southwest Research Institute, San Antonio, Texas.