1. Specialist registrar in Oral and Maxillofacial Surgery, St George’s Hospital, Tooting, London SW17 0QT, UK
2. Specialist registrar in Oral and Maxillofacial Surgery, Morriston Hospital, Swansea SA6 6NL, UK
3. Consultant in Oral and Maxillofacial Surgery, Morriston Hospital, Swansea SA6 6NL, UK,