1. Department of Orthopaedic Surgery, Rutgers Biomedical and Health Sciences–Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
2. Department of Biomedical Engineering, Rutgers–The State University of New Jersey, Piscataway, New Jersey, USA
3. McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA