1 Department of Orthopaedic Surgery, Duke University, Duke University Medical Center, Box 3615, Durham, NC 27710, USA. Electronic address: [email protected].
2 Department of Orthopaedics, Duke University, Durham, NC 27710, USA. Electronic address: [email protected].
3 Duke University, DUMC Box 3615, Durham, NC 27710, USA. Electronic address: [email protected].