Boitor, C. G., Fratila, A., Stanciu, L., Pitic, A., & Acu, A. M. (2011). Socio-economic factors and hygienic food-illness involved in determining dental caries of 12-year-old children in rural and urban area. Revista de Cercetare si Interventie Sociala, 33, 167-177. https://www.rcis.ro/journal/article/view/356-socio-economic-factors-and-hygienic-food-illness-involved