1. Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
2. Center for Injury Research and Prevention, The Children’s Hospital of Philadelphia, PA, USA
3. Penn Injury Science Center, University of Pennsylvania, Philadelphia, PA, USA
4. Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
5. Division of Orthopedics, Sports Medicine and Performance Center, The Children’s Hospital of Philadelphia, PA, USA
6. School of Nursing, University of Pennsylvania, Philadelphia, PA, USA