1. Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri, United States
2. Shriners Hospitals for Children - St. Louis, St. Louis, Missouri, United States
3. Center of Regenerative Medicine, Washington University School of Medicine, St. Louis, Missouri, United States
4. Department of Mechanical Engineering and Materials Science, Washington University, St. Louis, Missouri, United States
5. Department of Biomedical Engineering, Washington University, St. Louis, Missouri, United States
6. Division of Biology and Biomedical Sciences, Washington University School of Medicine, St. Louis, Missouri, United States