1. Petersen P E, Bourgeois D, Ogawa H, Estupinan-Day S, Ndiaye C . The global burden of oral diseases and risks to oral health. Bull World Health Organ 2005; 83: 661–669.
2. Beaglehole R, Benzian H, Crail J, Mackay J . The oral health atlas: mapping a neglected global health issue. Geneva & Brighton: FDI World Dental Education Ltd & Myriad Editions, 2009.
3. Baelum V, van Palenstein Helderman W, Hugoson A, Yee R, Fejerskov O . A global perspective on changes in the burden of caries and periodontitis: implications for dentistry. J Oral Rehabil 2007; 34: 872–906.
4. Illich I. To hell with good intentions. Speech to the Conference on InterAmerican Student Projects (CIASP), Mexico, April 1968. Available from: http://www.swaraj.org/illich_hell.htm .
5. Bezruchka S. Medical tourism as medical harm to the Third World: why? For whom? Wilderness Environ Med 2000; 77: 77–78.