1. Assistant Professor of Orthopaedic Surgery, Stanford University, Stanford, CA.
2. Director, Orthopaedic Oncology, The Cancer Institute, Washington Hospital Center, and Professor of Orthopaedic Surgery, The George Washington University Medical Center, Washington, DC.
3. Attending, National Unit of Orthopedic Oncology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
4. Resident, Orthopaedic Surgery, The George Washington University Medical Center, Washington, DC.