1. Department of Orthopedic Surgery, Hamad Medical Corporation, Doha, Qatar,
2. Faculty of Medicine, University of Jordan, Amman, Jordan,
3. Department of Orthopedic Surgery, The Warren Alpert School of Medicine, Brown University, Providence, Rhode Island,
4. Department of Orthopedic Surgery, Aspetar Orthopedic and Sports Medicine Hospital, Doha, Qatar,