1. Senior Lecturer/Consultant Orthodontist, Department of Orthodontics, Queen's University, Belfast, Northern Ireland
2. Lecturer, School of Medicine, Dentistry and Biomedical Sciences, Queen's University, Belfast, Northern Ireland
3. Professor/Consultant Orthodontist, Department of Orthodontics, Queen's University, Belfast, Northern Ireland
4. Biostatistician, School of Medicine, Dentistry and Biomedical Sciences, Queen's University, Belfast, Northern Ireland
5. Professor, School of Psychology, Queen's University, Belfast, Northern Ireland