1. Hospital of the University of Pennsylvania, University of Pennsylvania, Philadelphia, PA, USA
2. Harvard Combined Orthopaedic Residency Program, Massachusetts General Hospital, Boston, MA, USA
3. Department of Orthopaedic Surgery, Brigham & Women’s Hospital, Boston, MA, USA
4. Department of Orthopaedic Surgery, Yale School of Medicine, Yale-New Haven Hospital, New Haven, CT, USA
5. Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA