(1)
Lourenço, S. de Q. C. .; Schueler, A. F. .; Camisasca, D. R. .; Lindenblatt, R. de C. .; Bernardo, V. G. . Histological Classifications of Oral Squamous Cell Carcinoma: A Review of the Proposed Systems. Rev. Bras. Cancerol. 2007, 53, 325-333.