1. Specialist Registrar (Oral Surgery), Oral Surgery Department, Floor 23, Guy's Dental Hospital, London Bridge, London, SE1 9RT, UK
2. Consultant (Oral Surgery), Oral Surgery Department, Floor 23, Guy's Dental Hospital, London Bridge, London, SE1 9RT, UK
3. Professor/Consultant (Oral and Maxillofacial Surgery), Department of Oral and Maxillofacial Surgery, Atrium 3, 3rd Floor, Bermondsey Wing, Guy's Hospital, London, SE1 9RT, UK