1. References to studies included in this review
2. Beltran-Valladares 2005 {published data only}
3. Prevalence of dental fluorosis and additional sources of exposure to fluoride as risk factors to dental fluorosis in schoolchildren of Campeche, Mexico;Beltran-Valladares;Revista de Investigacion Clinica,2005
4. Bottenberg 2004 {published data only}
5. Prevalence and determinants of enamel fluorosis in Flemish schoolchildren;Bottenberg;Caries Research,2004