1. Electrical and Computer Engineering Department, Drexel University, Philadelphia, Pennsylvania.
2. Department of Orthopedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania.
3. Department of Orthopedics, The Second Hospital of Jilin University, Chang Chun, Jilin, China.
4. School of Biomedical Engineering, Science & Health Systems, Drexel University, Philadelphia, Pennsylvania.
5. Department of Orthopedic Surgery, Drexel University College of Medicine, Philadelphia, Pennsylvania.
6. Division of Orthopedic Surgery, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.