1. Department of Orthopaedics, Rhode Island Hospital, Brown University, Providence, RI, USA
2. Tulane College of Medicine, New Orleans, LA, USA
3. Penn State College of Medicine, Hershey, PA, USA
4. Department of Radiology, Penn State College of Medicine, Hershey, PA, USA
5. Department of Orthopaedics, Penn State College of Medicine, Hershey, PA, USA