1. Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, 3471 Fifth Avenue, Suite 1010, Pittsburgh, PA 15213, USA
2. Division of Musculoskeletal Oncology, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, UPMC Shadyside Medical Building, 5200 Centre Avenue, Suite 415, Pittsburgh, PA 15232, USA
3. Division of Musculoskeletal Oncology and Adult Reconstruction, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, UPMC Shadyside Medical Building, 5200 Centre Avenue, Suite 415, Pittsburgh, PA 15232, USA
4. Division of Musculoskeletal Oncology, Departments of Orthopaedic Surgery and Surgery, UPCI Sarcoma Service, University of Pittsburgh Medical Center, UPMC Shadyside Medical Building, 5200 Centre Avenue, Suite 415, Pittsburgh, PA 15232, USA