1. World health organization global policy for improvement of oral health—world health assembly 2007;Petersen;Int Dent J,2008
2. Global, regional, and national prevalence, incidence, and disability-adjusted life years for oral conditions for 195 countries, 1990-2015: a systematic analysis for the global burden of diseases, injuries, and risk factors;Kassebaum;J Dent Res,2017
3. Impact of poor oral health on children's school attendance and performance;Jackson;Am J Public Health,2011
4. Oral health-related quality of life in Hong Kong preschool children;Wong;Caries Res,2011
5. Centers for Medicare MS. National health expenditure projections 2012–2022: centers for Medicare and Medicaid Services. 2011