1. Department of Orthopedic Surgery, Mutah University, Amman, Jordan
2. Department of Orthopedic Surgery, Hashemite University, Zarqa, Jordan
3. School of Medicine, Mutah University, Amman, Jordan
4. Department of Orthopedic Surgery, Yarmouk University, Irbid, Jordan
5. Department of Orthopaedic Surgery, Mutah University, Amman, Jordan