A. V. Assaf, A. S. Caldo-Teixeira, F. M. Silveira, M. I. B. Valente, R. G. Ditterich, and R. Barcelos, “Dental caries in inland Brazilian adolescents and its relationship with social determinants”, Braz. J. Oral Sci., vol. 13, no. 2, pp. 133–139, Dec. 2009.