1. Department of Orthopaedic Surgery, Hamad Medical Corporation, Doha, Qatar
2. Orthopaedic Department, Royal Manchester Children’s Hospital, Manchester University NHS Foundation Trust, Manchester, UK
3. Orthopaedic Department, Faculty of Medicine, Sohag University, Sohag, Egypt
4. Division of Orthopaedic Surgery, Department of Surgery, Sidra Medicine, Doha, Qatar