Lt Col Edward Sellon is a Consultant Radiologist with the British Army and an Honorary Consultant Radiologist at Oxford University Hospitals, UK

David C Howlett is a Consultant Radiologist at East Sussex Healthcare NHS Trust and Honorary Clinical Professor Radiology at Brighton and Sussex Medical School.

Professor Howlett is an experienced undergraduate examiner at two medical schools, Kings College London and Brighton and Sussex Medical School and has provided radiological imaging for Brighton finals for many years. He is radiology lead for year 5 at Brighton and Sussex Medical School and has been involved in the preparation of the national undergraduate radiology curriculum on behalf of the Royal College of Radiologists. As such he has a detailed and intimate knowledge of the radiological requirements for finals, both for written and OSCE exams.