Steven A Burr1, Tracey Collett2, Yee L Leung3. 1. Associate Professor, Collaboration for the Advancement of Medical Education Research and Assessment (CAMERA), Plymouth University, Peninsula Schools of Medicine and Dentistry, Plymouth PL4 8AA. 2. Associate Professor, Peninsula School of Medicine, Plymouth. 3. Consultant Spinal Surgeon, Department of Orthopaedics, Musgrove Park Hospital, Taunton, Somerset.