Pithon, M. M., R. L. dos Santos, F. O. Martins, M. T. V. Romanos, and M. T. de S. Araújo. “Evaluation of the in Vitro Biocompatibility of Orthodontic Elastics”. Brazilian Journal of Oral Sciences, vol. 8, no. 4, Dec. 2015, pp. 171-4, doi:10.20396/bjos.v8i4.8642037.