[1] University College London,Professor of Health Psychology, Department of Epidemiology and Public Health
[2] Guy's King's & St Thomas' Dental Institute,Research Fellow in Dental Public Health, Department of Dental Public Health
[3] University College London,Senior Research Fellow, Department of Epidemiology and Public Health
[4] Guy's King's & St Thomas' Dental Institute,Professor of Dental Public Health, Department of Dental Public Health