Ferreira, D. de C., V. Meirelles Jr., K. S. G. Cunha, M. E. R. Janini, and J. A. da R. Curvelo. “Cytochrome P450 Enzymes and Their Correlation With the Risk Factors for the Development of the Oral Cancer – State of the Art”. Journal of Medical and Biological Sciences, vol. 6, no. 2, Jan. 2007, pp. 223-32, doi:10.9771/cmbio.v6i2.4213.