1. From the Department of Pathology, Riyadh, Saudi Arabia.
2. From the Departments of Pathology and Laboratory Medicine, Riyadh, Saudi Arabia.
3. From the Department of Orthopedic Surgery, Riyadh, Saudi Arabia.
4. From the Department of Oncology, Riyadh, Saudi Arabia.
5. From the Department of Surgery, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.