1. Biomaterials and Tissue Engineering Laboratory, Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota.
2. Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
3. Biomechanics Laboratory, Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.
4. Biomedical Imaging Resource, Mayo Clinic College of Medicine, Rochester, Minnesota.