1. Department of Orthopaedics, Jinnah Postgraduate Medical Centre, Karachi, Pakistan
2. Department of Orthopaedics, National Institute of Rehabilitation Medicine, Islamabad, Pakistan
3. Department of Orthopaedics, Sir Syed Medical College for Girls and Trust Hospital, Karachi, Pakistan
4. Department of Orthopaedics, Leeds Teaching Hospital Trust, Leeds, UK