Document Type : Original Article(s)
Authors
1 Oral and Dental Disease Research Center and Department of Dental Public Health, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran Research Department of Epidemiology and Public Health, University College London, London, UK
2 Oral and Dental Disease Research Center and Department of Dental Public Health, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
3 Department of Social Science and Medicine, Imperial College London, London, UK
4 Research Department of Epidemiology and Public Health, University College London, London, UK
Abstract