1. Specialty Registrar in the Trauma and Orthopaedic Department, Royal London Hospital, London E1 1BB
2. Specialty Registrar in the Trauma and Orthopaedic Department, Princess Alexandra Hospital, Harlow, Essex
3. Specialty Registrar in the Trauma and Orthopaedic Department, University College Hospital, London
4. Consultant Orthopaedic Surgeon, Divisional Clinical Director of Surgical Specialties and Director of the Institute of Sport, Exercise & Health, University College Hospital, London