1. Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA; Motion & Gait Analysis Laboratory, Lucile Packard Children's Hospital, Stanford, CA; Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea
2. Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA; Motion & Gait Analysis Laboratory, Lucile Packard Children's Hospital, Stanford, CA; Department of Bioengineering, Stanford University, 770 Welch Rd, Suite 400, Stanford, CA 94304
3. Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA; Motion & Gait Analysis Laboratory, Lucile Packard Children's Hospital, Stanford, CA
4. Motion & Gait Analysis Laboratory, Lucile Packard Children's Hospital, Stanford, CA
5. Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA; Motion & Gait Analysis Laboratory, Lucile Packard Children's Hospital, Stanford, CA; Department of Mechanical Engineering, Stanford University, Stanford, CA