1. General Practitioner, Sussex, UK
2. WE Parkes British Heart Foundation Senior Clinical Research Fellow and Senior Lecturer in Clinical Pharmacology, University of Cambridge, Honorary Consultant Physician at Addenbrooke's Hospital, Cambridge, UK
3. Foundation Doctor, North West Thames, London, UK, and Research Fellow NYU Institute of Reconstructive Plastic Surgery, New York, USA
4. Foundation year 2 junior doctor, John Radcliffe Hospital, Oxford, UK
5. Resident (specialist registrar) in clinical oncology and radiation therapy, Tehran, Iran