1. Post Specialist Registrar, University Dental Hospital, Cardiff, UK
2. Consultant in Paediatric Dentistry, University Dental Hospital, Cardiff, UK
3. GDP, Crosskeys Dental Surgery, 19 Risca Road, Gwent, UK
4. Professor and Honorary Consultant in Paediatric Dentistry, Applied Clinical Research and Public Health, Cardiff University, School of Dentistry, Heath Park, Cardiff, UK