1. Abbas, A. K., Lichtman, A. H., & Pober, J. S. (2000). In Cellular and molecular immunology, 4th ed, Chap 17: Immunity to tumors (pp. 384–403). Pennsylvania: Saunders.
2. Estimativa (2008). Incidência de Câncer no Brasil 2008. Available from: www.inca.gov.br/estimativas/2008 . Accessed Feb 2008.
3. Doroshow, J. H. (2004). In R. E. Pollock, J. H. Doroshow, D. Khayat, A. Nakao & B. O’Sullivan (Eds.), UICC manual of clinical oncology, 8th ed, Chap 10: Principles of medical oncology (pp. 208–219). New Jersey: Wiley.
4. Okey, A. B., Harper, P. A., Grant, D. M., & Hill, R. P. (1998). In I. F. Tannock & R. P. Hill (Eds.), The basic science of oncology, 3rd ed, Chap 3: Chemical and radiation carcinogenesis (pp. 25–48). New York: Mc Graw Hill.
5. Lopes, L., Godoy, L. M. F., Oliveira, C. C., Gabardo, J., Schadeck, R. J. G., & Buchi, D. F. (2006). Micron (Oxford, England), 37, 277–287. doi: 10.1016/j.micron.2005.08.005 .